APPENDIX A GENERAL FIELD PROCEDURES

Transcription

1 APPEIX A GENERAL FIELD PROCEDURES The following sections outline the general field procedures and protocols followed by Pinnacle Environmental Technologies (Pinnacle) in the completion of field tasks. Some but not necessarily all of these procedures were used during this investigation. Any deviation from the procedures outlined here due to unique or unforeseen circumstances will be noted in the body of the applicable report. The following tasks are detailed: Soil Sample Collection - Direct Push Rigs, Hollow Stem Auger Sampling Soil Classification and Logging Groundwater Grab Sampling Groundwater Monitoring Well Installation Small Diameter Well Installation Groundwater Level Monitoring Monitoring Well Purging and Sampling Chain-of-Custody Protocol Soil Sample Collection Soil samples are collected to allow soil description/classification and for laboratory analysis. Samples may be collected using a variety of different techniques including: hollow stem auger rigs (drop hammer samplers), direct push rigs, composite grab samplers, or excavation samples. The sampling technique utilized will be selected based on the particular phase of work and sample requirements. All soil samples collected during drilling operations are also monitored for volatile organic vapors. This is accomplished using a photo-ionization detector (PID) and LEL meter to monitor the soil either at the ends of sample tubes or after it has been placed in sealed Ziploc bags. The maximum PID and LEL readings are recorded on the boring log. Field headspace readings are also used to determine if a soil sample will be analyzed in the laboratory. Direct-Push Drill Rigs Samples collected using direct-push techniques are collected in either brass/stainless steel tubes or acetate sleeves. The sampling device is advanced using hydraulic pressure and a hammer into undisturbed soil ahead of the sampler. The sleeves or tubes are removed from the sampling device after retrieving the sampler from the boring. If acetate sleeves are used, the sleeve is examined and the sample portion selected for laboratory analysis is cut off from the main sleeve. A 4 to 6-inch portion is typically removed for laboratory

2 Alameda Street Widening Project Phase II Site October 7, 204 South Segment, Wilmington, CA Investigation Report analysis. After the sample tubes are retrieved from the sampler, each tube is sealed using Teflon tape and plastic end caps. Each sample tube is labeled with the sample identification, date and time of sampling, and sample site identification. The sample is then placed in a cooler chilled with either blue ice or wet ice for transport to the laboratory. Hollow Stem Auger Sampling Hollow stem auger samples are typically collected in split tube samples, California samplers, or Shelby tubes. When a sample for laboratory analysis or standard penetration test (SPT) data is required, the sampler is driven into undisturbed soil with a down hole or standard 40 pound geotechnical hammer. The sampler is lined with brass/stainless steel (if required for metal analysis) tubes for handling the undisturbed samples at the surface. Tubes are not used for SPTs. After bringing the sampler to the surface and removing the tubes with sample, they are handled as described earlier in this section. Samples for description are released from the sampler shoe and placed into a Ziploc bag for headspace analysis and visual inspection. Disturbed samples for geotechnical analysis are placed in Ziploc bags. All augers, rods and/or samplers used to collect soil at the Site were steam-cleaned between locations. Soil Classification and Logging Soils are classified in the field in conformance with the Unified Soil Classification System (USCS-ASTM D2487). A boring log is maintained for soil borings and well installations. Each log records the sample identification, collection location, depth and interval; number of blows required for sample collection (drop hammer samplers only); USCS soil type, color, field density estimation, field moisture content estimation, physical characteristics (grain size, sorting, roundness, odors, and other distinguishing characteristics); and, time of sample collection. If a boring is not converting to a well, it is backfilled with either hydrated bentonite chips, Volclay grout, bentonite cement, Portland cement, or a combination of the above. Borings are backfilled in accordance with any prevailing local standards and regulations. PINNACLE ENVIRONMENTAL TECHNOLOGIES 2

3 Alameda Street Widening Project Phase II Site October 7, 204 South Segment, Wilmington, CA Investigation Report Groundwater Grab Sampling Groundwater grab samples may be collected from Geoprobe borings using bailers or polyethylene tubing. In either case, a temporary screen is lowered in the well bore to a depth at which the screen intersects the static water level. A decontaminated bailer may then be lowered in to he well to collect a sample. Standard purging in not normally performed prior to pulling grab samples, unless extremely turbid samples are initially collected. Alternatively, a polyethylene tube may be lowered into the temporary well screen to purge water from the well. A check valve is placed on the bottom of the tubing to allow water to be removed from the well. This technique is more applicable to sites where the presence of concentrations of non-volatile constituents are being assessed. A peristaltic pump may also be used to purge larger quantities of water from the well before sampling The water is decanted into the sample containers (40-milliliter VOAs or glass amber bottles, as required) in a manner which minimizes agitation and possible loss of volatiles. Each container is filled so that when the cover is tightened that a zero headspace sample has been collected with no trapped air bubbles visible in the container. Each container is then labeled with the sample identification, sample date and time, and site name. The sample containers are then placed in a cooled ice chest for transport to the laboratory. Groundwater Monitoring Well Installation Groundwater monitoring wells are typically constructed of two or four-inch PVC with.00 or.020-inch slots. At least a ten-foot section of the screened interval is generally installed below the expected static water level. If a fluctuating static water level is expected, the screened interval is designed to allow a sufficient length of screen to be below static water level at all times. The screen extends to the bottom of the well in almost all cases. Sumps are generally not installed. No glue is used during construction. A sand pack, which is appropriate for filtering sediment derived from the surrounding formation from groundwater entering the well, is poured to approximately two feet above the top of the screened interval. The well is developed for a short time after installation of the sand pack to promote settling of the sand pack. Approximately three feet of bentonite chips are placed from the top of the sand pack and hydrated with a minimal amount of potable water. A concrete seal is poured above the bentonite chips to further seal the well from surface water infiltration, and to set a steel, traffic-rated well cover or monument. PINNACLE ENVIRONMENTAL TECHNOLOGIES 3

4 Alameda Street Widening Project Phase II Site October 7, 204 South Segment, Wilmington, CA Investigation Report The wells at Hyperion were developed using a six-foot, bottom-emptying, steel bailer. The bailer was used to surge the well, and to remove from 5 to 20 gallons of turbid groundwater from each well. The bailer was steam-cleaned between wells. Small Diameter Well Installation Small-diameter groundwater monitoring wells are typically constructed of one-inch PVC with.00 or.020-inch slotted screens. The PVC is threaded with rubber seals. No glue is used during construction. Screened intervals are selected in the same manner as with larger diameter wells. A sand pack is installed to a depth above the top of the screen. A two to three foot seal of bentonite chips is placed at the top of the sand pack. A concrete seal is poured to further seal the well from surface water infiltration, and a steel, trafficrated well cover is installed at the surface. Groundwater samples are collected from standard monitoring wells and small-diameter wells using similar methods. Sampling of groundwater monitoring wells is conducted in accordance with the EPA Technical Enforcement Guidance Document or with any other local protocols and procedures. Groundwater Level Monitoring The depth to groundwater is measured to the nearest 0.0 foot and recorded for use in determining the groundwater gradient and flow direction. Water level measurements are completed on all wells prior to purging any well at the site. Depth to groundwater is measured using either an electronic well sounding device (i.e. Solinst) or using an interface probe (i.e. Waterra, ORS, MMC). If a sounding device is used, the well is first checked for the presence of non-aqueous phase petroleum liquids (NAPLs) using hydrocarbon sensitive paste or an interface probe. The interface probe is capable of direct detection of trace thickness of NAPLs. The water level meter in this investigation was cleaned with an alconox solution, rinsed with clean water, and wiped with denatured alcohol between wells. Monitoring Well Purging and Sampling All wells are purged prior to the collection of groundwater samples to ensure that a representative groundwater sample is collected. Wells are typically purged using either a portable submersible pump or by using a vacuum truck and dedicated well stinger. Water temperature, ph, and conductivity are monitored during purging. Purging is considered complete once a minimum of three well casing volumes have been purged and the PINNACLE ENVIRONMENTAL TECHNOLOGIES 4

5 Alameda Street Widening Project Phase II Site October 7, 204 South Segment, Wilmington, CA Investigation Report physical parameters have stabilized for successive readings to within 5 percent of temperature and conductivity and 0.05 ph units. Many low yield aquifers are not capable of producing three well casing volumes of water. In these cases the well may be pumped dry. If this occurs, the well is only pumped dry once and samples are collected once the conditions specified below are achieved. Care is taken not to overpump a well to dryness and to avoid the possibility of cascading water into the well. All wells are purged at the minimum rate necessary to adequately ensure that a representative groundwater sample will be collected. In certain cases, regulatory agencies will request the collection of groundwater samples from wells without first purging them. Pre-Purge samples are identified as such on the Chain-of-Custody and in the sample identification section of the report. Each well is allowed to recharge to 80% of its pre-purge volume prior to sampling, or for two hours, whichever occurs first. If a well does not recharge to 80% of its pre-purge volume within two hours, then a sample is collected as soon as sufficient water has collected in the well to fill the required sample containers. Samples are collected by slowly lowering either a disposable Teflon/polyethylene or decontaminated stainless steel bailer into the water column. Care is taken to minimize agitating the water as the bailer enters. The bailer is removed from the well after filling, and a bottom emptying device attached. The water is decanted into the sample containers (40-milliliter VOAs or glass amber bottles, as required) in a manner which minimizes agitation and possible loss of volatiles. Each container is filled so that when the cover is tightened that a zero headspace sample has been collected with no trapped air bubbles visible in the container. Each container is then labeled with the sample identification, sample date and time, and site name. The sample containers are then placed in a cooled ice chest for transport to the laboratory. The wells at Hyperion were purged with a decontaminated submersible pump. New vinyl tubing was used for each well. The pump was decontaminated with an alconox solution, and rinsed with clean water. Groundwater samples were collected with disposable polyethylene bailers through low-flow emptying devices. New string was used for each well. PINNACLE ENVIRONMENTAL TECHNOLOGIES 5

6 Alameda Street Widening Project Phase II Site October 7, 204 South Segment, Wilmington, CA Investigation Report The liter amber bottles and 40 milliliter VOAs used to transport the samples to the laboratory were washed with alconox and heated to a temperature of 60 degrees F for two hours to remove potentially detectable concentrations of coliform, volatile organic compounds, or metals. Chain-of-Custody Protocol All soil and groundwater samples that are collected are documented using chain-ofcustody (COC) procedures. Each sample is identified and entered onto the COC record along with the date and time of collection and the type and number of sample containers. COC documents also typically used to document which analyses are completed on each sample. The COC follows the samples from the field to the laboratory and is a legal document recording who had possession of the samples at all times. The groundwater samples were delivered to the laboratory on the day of sample collection. They were immediately put into a refrigerator after acceptance by the laboratory. PINNACLE ENVIRONMENTAL TECHNOLOGIES 6

7 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 730 N/A 35 ppm B-0.5 No pavement at surface Silty Sand (SM), very fine-grained sand, trace gravel, light brown, medium dense, micaceous, scattered FeO2 mottling, damp, no odor. No Well Constructed Backfilled with Cuttings 2 Increased gravel. Refusal at 2 feet below ground surface. No water encountered

8 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB2 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 85 N/A 4.6 ppm B2-0.5 No pavement at surface Silty Sand (SM), very fine-grained sand, trace gravel, dark brown, medium dense, micaceous, scattered FeO2 mottling, damp, no odor. No Well Constructed Backfilled with Cuttings ppm B2-2.5 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, damp, 4 Same as above, micaceous, moist to wet ppm B2-5.0 Boring advanced to 5 feet below ground surface. No water encountered

9 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB3 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 900 N/A 0 ppm B3-0.5 No pavement at surface FILL, Gravelly Sand (SW), fine-to coarse-grained sand, dark brown, loose, micaceous, damp, no odor, to approximately.2 feet bgs. No Well Constructed Backfilled with Cuttings Silty Sand (SM), very fine-grained sand, trace gravel, dark brown, medium dense, micaceous, scattered FeO2 mottling, damp, no odor ppm B3-2.5 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, damp, 4 Same as above, micaceous, moist to wet ppm B Boring advanced to 5 feet below ground surface. No water encountered

10 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB4 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 950 N/A 0 ppm B4-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, dark brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, brown, medium dense, damp, organic odor ppm B4-2.5 Same as above. 4 Same as above, micaceous, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

11 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB5 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 040 N/A 0 ppm B5-0.5 No pavement at surface FILL, Gravelly Sand (SW), fine-to coarse-grained sand, dark brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings 2 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, damp, organic odor ppm B5-2.5 Same as above. 4 Same as above, micaceous, moist to wet ppm B Boring advanced to 5 feet below ground surface. No water encountered

12 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB6 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 5 N/A 0.8 ppm B6-0.5 No pavement at surface FILL, Gravelly Sand (SW), fine-to coarse-grained sand, dark brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings 2 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, damp, organic odor ppm B6-2.5 Same as above. 4 Same as above, micaceous, moist to wet ppm B Boring advanced to 5 feet below ground surface. No water encountered

13 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB7 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 200 N/A 7.3 ppm B7-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, dark brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, grayish tan, medium dense, damp to moist ppm B7-2.5 Same as above, micaceous, slight organic odor ppm B7-5.0 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, moist to wet, micaceous, organic odor. 6 Boring advanced to 5 feet below ground surface. No water encountered

14 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB8 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 250 N/A 0 ppm B8-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B8-2.5 Same as above, micaceous ppm B8-5.0 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

15 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB9 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 340 N/A 0 ppm B9-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B9-2.5 Same as above, micaceous ppm B9-5.0 Sand with Silt (SP/SM), fine-grained sand, black, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

16 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB0 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 430 N/A 6. ppm B0-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B0-2.5 Same as above, micaceous ppm B0-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

17 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/30/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 55 N/A 0 ppm B-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B-2.5 Same as above, micaceous, slight petroleum odor ppm B-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

18 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB2 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 800 N/A 3.5 ppm B2-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, slight petroleum odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B2-2.5 Same as above, micaceous ppm B2-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

19 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB3 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 850 N/A 9. ppm B3-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, slight petroleum odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B3-2.5 Same as above, micaceous ppm B3-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

20 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB4 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 930 N/A 0 ppm B4-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B4-2.5 Same as above, micaceous ppm B4-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

21 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB5 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. 0 feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 00 N/A 0 ppm B5-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, damp ppm B5-2.5 Same as above, micaceous ppm B5-5.0 Sand with Silt (SP/SM), fine-grained sand, dark brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

22 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB6 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 00 N/A ppm B6-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, slight petroleum odor. No Well Constructed Backfilled with Cuttings Silt with Sand (ML), fine-grained sand, dark brown, medium dense, damp ppm B6-2.5 Same as above, increased clay, micaceous ppm B6-5.0 Sand with Silt (SP/SM), fine-grained sand, brown, medium dense, moist, micaceous. 6 Boring advanced to 5 feet below ground surface. No water encountered

23 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB7 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 50 N/A 0 ppm B7-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp. No Well Constructed Backfilled with Cuttings ppm B7-2.5 Same as above, micaceous, slight petroleum odor. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

24 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB8 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 240 N/A 0 ppm B8-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp. No Well Constructed Backfilled with Cuttings ppm B8-2.5 Same as above, micaceous, slight petroleum odor. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

25 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB9 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 330 N/A 0 ppm B9-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp ppm B9-2.5 Same as above, micaceous. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

26 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB20 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 40 N/A 0 ppm B No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp ppm B Same as above, micaceous. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

27 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB2 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 500 N/A 0 ppm B2-0.5 No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp ppm B2-2.5 Same as above, micaceous,slight petroleum odor. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

28 BORING LOG SITE: Alameda Street Widening - South BORING NO.: PB22 PINNACLE ENVIRONMENTAL TECHNOLOGIES #2 Santa Maria, Foothill Ranch, CA Tel: (949) Fax: (949) LOCATION: East of Alameda St. ( , ) Wilmington, California DRILLING METHOD: DRILLING COMPANY: Hand Auger Strongarm Environmental Field Serv. DATE: GEOLOGIST: REVIEWED: ELEVATION: 7/3/4 William Malvey Keith Thompson, P.G. feet above MSL Time Blows LEL/ PID Depth Sample DESCRIPTION Graphic Log Well Const 540 N/A 0 ppm B No pavement at surface FILL, Sand (SP), very fine-grained sand, trace gravel, brown, loose, micaceous, damp, no odor. No Well Constructed Backfilled with Cuttings Silt with Clay (ML), trace fine-grained sand, light brown, firm, damp ppm B Same as above, micaceous. 4 Same as above, moist ppm B Boring advanced to 5 feet below ground surface. No water encountered

29 August 2, 204 ELAP Certificate No: 2268 Mr. Keith Thompson Pinnacle Env. Technologies 2 Santa Maria Foothill Ranch, CA 9260 Project: C&E ID: Alameda St. Widening-South 4073B Dear Mr. Thompson, Enclosed is an analytical report for the sample(s) received by Chemical & Environmental Laboratories, Inc. on July 3, 204 and analyzed as indicated in the attached chain-ofcustody. Unless otherwise noted, no problems were encountered during receiving, preparation and analysis of these samples. Please contact me at (562) if you have any questions regarding this report. Sincerely, Larry Zhang, Ph.D. Laboratory Director 3824 Bentley Place, Cerritos, CA Tel: , Fax:

30 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B- 4073B B B B-6 SAMPLE ID PB-0.5 PB2-0.5 PB2-2.5 PB2-5.0 PB3-0.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

31 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-5 SAMPLE ID PB6-5.0 PB7-0.5 PB7-2.5 PB7-5.0 PB8-0.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

32 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-56 SAMPLE ID PB8-2.5 PB8-5.0 PB9-0.5 PB9-2.5 PB9-5.0 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

33 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-6 SAMPLE ID PB PB PB PB2-0.5 PB2-2.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

34 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-66 SAMPLE ID PB2-5.0 PB PB PB PIT- DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B 2 7 Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

35 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID SAMPLE ID 4073B-67 PIT-2 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B 2 Arsenic (As) 600B Barium (Ba) 600B 88 Beryllium (Be) 600B Cadmium (Cd) 600B 0.5 Chromium (Cr) 600B 20 Cobalt (Co) 600B 8 Copper (Cu) 600B 26 Lead (Pb) 600B 6 Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B 2 Silver (Ag) 600B Thallium (Tl) 600B 2 Vanadium (V) 600B 49 Zinc (Zn) 600B 55 = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

36 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B- SAMPLE ID PB3-2.5 PB3-5.0 PB4-0.5 PB4-2.5 PB4-5.0 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

37 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-6 SAMPLE ID PB5-0.5 PB5-2.5 PB5-5.0 PB6-0.5 PB6-2.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

38 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-2 SAMPLE ID PB6-5.0 PB7-0.5 PB7-2.5 PB7-5.0 PB8-0.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B 5 Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

39 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-26 SAMPLE ID PB8-2.5 PB8-5.0 PB9-0.5 PB9-2.5 PB9-5.0 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

40 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-3 SAMPLE ID PB0-0.5 PB0-2.5 PB0-5.0 PB-0.5 PB-2.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

41 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-36 SAMPLE ID PB-5.0 PB2-0.5 PB2-2.5 PB2-5.0 PB3-0.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

42 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-4 SAMPLE ID PB3-2.5 PB3-5.0 PB4-0.5 PB4-2.5 PB4-5.0 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B 2 2 Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

43 ANALYTICAL REPORT --- CA Title 22 Metals (7) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/05/4 Project Name: Alameda St. Widening-South Date Reported: 08/4/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID 4073B B B B B-46 SAMPLE ID PB5-0.5 PB5-2.5 PB5-5.0 PB6-0.5 PB6-2.5 DF COMPOU Method Result RL Result RL Result RL Result RL Result RL Antimony (Sb) 600B Arsenic (As) 600B Barium (Ba) 600B Beryllium (Be) 600B Cadmium (Cd) 600B Chromium (Cr) 600B Cobalt (Co) 600B Copper (Cu) 600B Lead (Pb) 600B Mercury (Hg) Molybdenum (Mo) 600B Nickel (Ni) 600B Selenium (Se) 600B Silver (Ag) 600B Thallium (Tl) 600B Vanadium (V) 600B Zinc (Zn) 600B = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

44 ANALYTICAL REPORT --- EPA 48. (TRPH) --- Client Name: Pinnacle Date Sampled: 07/30/4 Project Manager: Alameda St. Widening-South Date Analyzed: 08/0/4 Project Name: Keith Thompson Date Reported: 08/04/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID SAMPLE ID DF RESULT RL 4073B- PB B-3 PB B-4 PB B-5 PB B-6 PB B-7 PB B-8 PB B-9 PB B-0 PB B- PB B-2 PB B-3 PB B-4 PB B-5 PB B-6 PB B-7 PB B-8 PB B-9 PB B-20 PB B-2 PB B-22 PB B-23 PB B-24 PB B-25 PB B-26 PB B-27 PB = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

45 ANALYTICAL REPORT --- EPA 48. (TRPH) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Alameda St. Widening-South Date Analyzed: 08/0/4 Project Name: Keith Thompson Date Reported: 08/04/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID SAMPLE ID DF RESULT RL 4073B-28 PB B-29 PB B-30 PB B-3 PB B-32 PB B-33 PB B-34 PB B-35 PB B-36 PB B-37 PB B-38 PB B-39 PB B-40 PB B-4 PB B-42 PB B-43 PB B-44 PB B-45 PB B-46 PB B-47 PB B-48 PB B-49 PB B-50 PB B-5 PB B-52 PB B-53 PB = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

46 ANALYTICAL REPORT --- EPA 48. (TRPH) --- Client Name: Pinnacle Date Sampled: 07/3/4 Project Manager: Alameda St. Widening-South Date Analyzed: 08/0/4 Project Name: Keith Thompson Date Reported: 08/04/4 Sample Matrix: Soil Unit Reported: mg/kg or ppm C&E LAB ID SAMPLE ID DF RESULT RL 4073B-54 PB B-55 PB B-56 PB B-57 PB B-58 PB B-59 PB B-60 PB B-6 PB B-62 PB B-63 PB B-64 PB B-65 PB B-66 PIT B-67 PIT = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

47 ANALYTICAL REPORT M (Hydrocarbon Characterization) --- Client Name: Pinnacle Date Sampled: Project Manager: Keith Thompson Date Analyzed: Project Name: Alameda St. widening-south Date Reported: Sample Matrix: Soil Unit Reported: 7/30~7/3/4 08/06/4 08/06/4 mg/kg or ppm C&E LAB ID SAMPLE ID DF C 4 -C 2 C 3 -C 22 C 23 -C 40 %Surrogate Result RL Result RL Result RL (70-30) 4073B- PB B-3 PB B-6 PB B-8 PB B-27 PB B-28 PB B-3 PB B-33 PB B-34 PB B-36 PB B-39 PB B-43 PB B-45 PB B-57 PB B-6 PB = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: Fax:

48 ANALYTICAL REPORT --- EPA 85A (Chlorinated Herbicides) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/08/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/08/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID 4073B- 4073B B B B-24 SAMPLE ID PB-0.5 PB3-0.5 PB5-0.5 PB7-0.5 PB9-0.5 DF Unit Reported: μg/kg or ppb COMPOU Result RL Result RL Result RL Result RL Result RL 2,4-D ,4-DB ,4,5-T Dalapon Dicamba Dichloroprop Dinoseb MCPA MCPP Silvex Surrogate Compounds DCAA % Surrogate Recovery (50-50) = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable, coeluting organics in sample Bentley Place, Cerritos CA Tel: Fax:

49 ANALYTICAL REPORT --- EPA 85A (Chlorinated Herbicides) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/08/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/08/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID 4073B B B B B-54 SAMPLE ID PB-0.5 PB3-0.5 PB5-0.5 PB7-0.5 PB9-0.5 DF Unit Reported: μg/kg or ppb COMPOU Result RL Result RL Result RL Result RL Result RL 2,4-D ,4-DB ,4,5-T Dalapon Dicamba Dichloroprop Dinoseb MCPA MCPP Silvex Surrogate Compounds DCAA % Surrogate Recovery (50-50) = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable, coeluting organics in sample Bentley Place, Cerritos CA Tel: Fax:

50 ANALYTICAL REPORT --- EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B B B-6 SAMPLE ID PB2-2.5 PB3-2.5 PB4-2.5 PB5-2.5 PB6-2.5 DF COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

51 ANALYTICAL REPORT --- EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B B B-3 SAMPLE ID PB7-2.5 PB8-2.5 PB9-2.5 PB0-2.5 PB-2.5 DF COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

52 4073B EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B B B-46 SAMPLE ID PB2-2.5 PB3-2.5 PB4-2.5 PB5-2.5 PB6-2.5 DF COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

53 ANALYTICAL REPORT --- EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B B B-6 SAMPLE ID PB7-2.5 PB8-2.5 PB9-2.5 PB PB2-2.5 DF COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

54 ANALYTICAL REPORT --- EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B-64 PB COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

55 ANALYTICAL REPORT --- EPA 8260B (Oxygenated Compounds) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/06/4 Project Name: Alameda St. Widening-South Date Reported: 08/08/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B B B-57 SAMPLE ID PB2-0.5 PB3-0.5 PB4-0.5 PB6-0.5 P DF COMPOU Ethyl Tertiary Butyl Ether Tertiary Amyl Methyl Ether Diisopropyl Ether Tertiary Butyl Alcohol MTBE Result RL Result RL Result RL Result RL Result RL = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

56 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B B B B B-6 PB2-2.5 PB3-2.5 PB4-2.5 PB5-2.5 PB6-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

57 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B-0 SAMPLE ID PB2-2.5 PB3-2.5 PB4-2.5 DF 4073B B-6 PB5-2.5 PB6-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D8 4-Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

58 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B B B B B-3 PB7-2.5 PB8-2.5 PB9-2.5 PB0-2.5 PB-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

59 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B-25 SAMPLE ID PB7-2.5 PB8-2.5 PB9-2.5 DF 4073B B-3 PB0-2.5 PB-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

60 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B B B B B-46 PB2-2.5 PB3-2.5 PB4-2.5 PB5-2.5 PB6-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

61 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B-40 SAMPLE ID PB2-2.5 PB3-2.5 PB4-2.5 DF 4073B B-46 PB5-2.5 PB6-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D8 4-Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

62 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B B B B B-6 PB7-2.5 PB8-2.5 PB9-2.5 PB PB2-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

63 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B-55 SAMPLE ID PB7-2.5 PB8-2.5 PB9-2.5 DF 4073B B-6 PB PB2-2.5 COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

64 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B-64 PB COMPOU Result RL Result RL Result RL Result RL Result RL Acetone 5 Benzene Bromodichloromethane 2 Bromoform 5 Bromomethane 2 2-Butanone (MEK) 2 Carbon Disulfide 2 Carbon Tetrachloride 2 Chlorobenzene 2 Chloroethane 2 Chloroform 2 Chloromethane 5 Cyclohexane 2 Dibromochloromethane 5,2-Dibromo-3-Chloropropane 2,2-Dibromoethane 2,2-Dichlorobenzene 2,3-Dichlorobenzene 2,4-Dichlorobenzene 2 Dichlorodifluoromethane 5,-Dichloroethane 2,2-Dichloroethane 2,-Dichloroethene 2 cis-,2-dichloroethene 2 trans-,2-dichloroethene 2,2-Dichloropropane 2 To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

65 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/0/4 Project Name: Alameda St. Widening-South Date Reported: 08/05/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B-64 SAMPLE ID PB DF COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene 2 cis-,3-dichloropropene 2 Ethylbenzene 2-Hexanone 2 Methyl Acetate 2 Methylcyclohexane 2 Methylene Chloride 2 4-Methyl-2-Pentanone 2 Styrene 2 Isopropylbenzene 2 4-Isopropyltoluene 2,,2,2-Tetrachloroethane 2 Tetrachloroethene 2 Toluene,2,4-Trichlorobenzene 2,,-Trichloroethane 2,,2-Trichloroethane 2 Trichloroethene 2 Trichlorofluoromethane 2,,2-Trichlorotrifluoroethane 2 Vinyl Chloride 5 Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane 03,2-Dichloroethane-d4 04 Toluene-D Bromofluorobenzene 93 = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

66 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/06/4 Project Name: Alameda St. Widening-South Date Reported: 08/08/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B- 4073B B B B-27 PB-0.5 PB2-0.5 PB3-0.5 PB7-0.5 PB0-0.5 COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

67 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/06/4 Project Name: Alameda St. Widening-South Date Reported: 08/08/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B- 4073B B-6 SAMPLE ID PB-0.5 PB2-0.5 PB3-0.5 DF 4073B B-27 PB7-0.5 PB0-0.5 COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

68 ANALYTICAL REPORT Page of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/06/4 Project Name: alameda St. Widening-South Date Reported: 08/08/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID SAMPLE ID DF 4073B B B B B-57 PB2-0.5 PB3-0.5 PB4-0.5 PB6-0.5 PB COMPOU Result RL Result RL Result RL Result RL Result RL Acetone Benzene Bromodichloromethane Bromoform Bromomethane Butanone (MEK) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane ,2-Dibromo-3-Chloropropane ,2-Dibromoethane ,2-Dichlorobenzene ,3-Dichlorobenzene ,4-Dichlorobenzene Dichlorodifluoromethane ,-Dichloroethane ,2-Dichloroethane ,-Dichloroethene cis-,2-dichloroethene trans-,2-dichloroethene ,2-Dichloropropane To be continued on page Bentley Place, Cerritos CA Tel: , Fax:

69 ANALYTICAL REPORT Page 2 of EPA 8260B (VOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Analyzed: 08/06/4 Project Name: alameda St. Widening-South Date Reported: 08/08/4 Sample Matrix: Soil Unit Reported: µg/kg or ppb C&E LAB ID 4073B B B-39 SAMPLE ID PB2-0.5 PB3-0.5 PB4-0.5 DF 4073B B-57 PB6-0.5 PB COMPOU Result RL Result RL Result RL Result RL Result RL trans-,3-dichloropropene cis-,3-dichloropropene Ethylbenzene 2-Hexanone Methyl Acetate Methylcyclohexane Methylene Chloride Methyl-2-Pentanone Styrene Isopropylbenzene Isopropyltoluene ,,2,2-Tetrachloroethane Tetrachloroethene Toluene,2,4-Trichlorobenzene ,,-Trichloroethane ,,2-Trichloroethane Trichloroethene Trichlorofluoromethane ,,2-Trichlorotrifluoroethane Vinyl Chloride Total Xylenes Surrogate Compounds % Surrogate Recovery (70-30) Dibromofluoromethane ,2-Dichloroethane-d Toluene-D Bromofluorobenzene = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: , Fax:

70 ANALYTICAL REPORT Page of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID SAMPLE ID DF COMPOU 4073B- 4073B B B B-27 PB-0.5 PB2-0.5 PB3-0.5 PB7-0.5 PB Unit Reported: µg/kg or ppb Result RL Result RL Result RL Result RL Result RL N-nitrosodimethylamine Bis (2-Chloroethyl) Ether Chlorophenol Phenol ,3-Dichlorobenzene ,4-Dichlorobenzene ,2-Dichlorobenzene Bis (2-Chloroisopropyl) Ether Hexachloroethane Methyl Phenol N-Nitrosodi-N-Propylamine Methylphenol Nitrobenzene Isophorone Nitrophenol ,4-Dimethylphenol Bis (2-Chloroethoxy) Methane ,4-Dichlorophenol ,2,4-Trichlorobenzene Naphthalene Chloroaniline Hexachlorobutadiene Methylnaphthalene Chloro-3-Methylphenol Hexachlorocyclopentadiene ,4,6-Trichlorophenol ,4,5-Trichlorophenol Chloronaphthalene Nitroaniline Acenaphthylene Dimethyl Phthalate ,6-Dinitrotoluene Acenaphthene Nitroaniline Nitrophenol Dibenzofuran To be continued on page Bentley Place, Cerritos, CA Tel: , Fax:

71 ANALYTICAL REPORT Page 2 of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID 4073B- 4073B B B B-27 SAMPLE ID PB-0.5 PB2-0.5 PB3-0.5 PB7-0.5 PB0-0.5 DF COMPOU Result RL Result RL Result RL Result RL Result RL 2,4-Dinitrotoluene ,4-Dinitrophenol Fluorene Chlorophenyl Phenyl Ether Diethylphthalate Nitroaniline Azobenzene Methyl-4,6-Dinitrophenol Bromophenyl Phenyl Ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butylphthalate Fluoranthene Pyrene Butylbenzylphthalate Benzo(a)Anthracene Chrysene Bis (2-Ethylhexyl) Phthalate Di-N-Octylphthalate Benzo (b) Fluoranthene Benzo (k) Fluoranthene Benzo (a) Pyrene Indeno (,2,3-c,d) Pyrene Dibenzo (a,h) Anthracene Benzo (g,h,i) Perylene Surrogate Compounds 2-Fluorophenol Phenol-d5 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-tribromophenol p-terphenyl-d4 Unit Reported: µg/kg or ppb % Surrogate Recovery (40-40) = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos, CA Tel: , Fax:

72 ANALYTICAL REPORT Page of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID SAMPLE ID DF COMPOU 4073B B B B B-45 PB-2.5 PB2-0.5 PB2-2.5 PB3-0.5 PB Unit Reported: µg/kg or ppb Result RL Result RL Result RL Result RL Result RL N-nitrosodimethylamine Bis (2-Chloroethyl) Ether Chlorophenol Phenol ,3-Dichlorobenzene ,4-Dichlorobenzene ,2-Dichlorobenzene Bis (2-Chloroisopropyl) Ether Hexachloroethane Methyl Phenol N-Nitrosodi-N-Propylamine Methylphenol Nitrobenzene Isophorone Nitrophenol ,4-Dimethylphenol Bis (2-Chloroethoxy) Methane ,4-Dichlorophenol ,2,4-Trichlorobenzene Naphthalene Chloroaniline Hexachlorobutadiene Methylnaphthalene Chloro-3-Methylphenol Hexachlorocyclopentadiene ,4,6-Trichlorophenol ,4,5-Trichlorophenol Chloronaphthalene Nitroaniline Acenaphthylene Dimethyl Phthalate ,6-Dinitrotoluene Acenaphthene Nitroaniline Nitrophenol Dibenzofuran To be continued on page Bentley Place, Cerritos, CA Tel: , Fax:

73 ANALYTICAL REPORT Page 2 of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID 4073B B B B B-45 SAMPLE ID PB-2.5 PB2-0.5 PB2-2.5 PB3-0.5 PB6-0.5 DF Unit Reported: µg/kg or ppb COMPOU Result RL Result RL Result RL Result RL Result RL 2,4-Dinitrotoluene ,4-Dinitrophenol Fluorene Chlorophenyl Phenyl Ether Diethylphthalate Nitroaniline Azobenzene Methyl-4,6-Dinitrophenol Bromophenyl Phenyl Ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butylphthalate Fluoranthene Pyrene Butylbenzylphthalate Benzo(a)Anthracene Chrysene Bis (2-Ethylhexyl) Phthalate Di-N-Octylphthalate Benzo (b) Fluoranthene Benzo (k) Fluoranthene Benzo (a) Pyrene Indeno (,2,3-c,d) Pyrene Dibenzo (a,h) Anthracene Benzo (g,h,i) Perylene Surrogate Compounds 2-Fluorophenol Phenol-d5 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-tribromophenol p-terphenyl-d4 % Surrogate Recovery (40-40) = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos, CA Tel: , Fax:

74 ANALYTICAL REPORT Page of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID SAMPLE ID DF COMPOU 4073B B-6 PB PB Unit Reported: µg/kg or ppb N-nitrosodimethylamine Bis (2-Chloroethyl) Ether Chlorophenol Phenol ,3-Dichlorobenzene ,4-Dichlorobenzene ,2-Dichlorobenzene Bis (2-Chloroisopropyl) Ether Hexachloroethane Methyl Phenol N-Nitrosodi-N-Propylamine Methylphenol Nitrobenzene Isophorone Nitrophenol ,4-Dimethylphenol Bis (2-Chloroethoxy) Methane ,4-Dichlorophenol ,2,4-Trichlorobenzene Naphthalene Chloroaniline Hexachlorobutadiene Methylnaphthalene Chloro-3-Methylphenol Hexachlorocyclopentadiene ,4,6-Trichlorophenol ,4,5-Trichlorophenol Chloronaphthalene Nitroaniline Acenaphthylene Dimethyl Phthalate ,6-Dinitrotoluene Acenaphthene Nitroaniline Nitrophenol Dibenzofuran To be continued on page 2 Result RL Result RL Result RL Result RL Result RL 3824 Bentley Place, Cerritos, CA Tel: , Fax:

75 ANALYTICAL REPORT Page 2 of EPA 8270C (SVOCs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/2/4 Project Name: Alameda St. Widening-South Date Analyzed: 08/2/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID 4073B B-6 SAMPLE ID PB PB2-2.5 DF 0 20 COMPOU Result RL Result RL Result RL Result RL Result RL 2,4-Dinitrotoluene ,4-Dinitrophenol Fluorene Chlorophenyl Phenyl Ether Diethylphthalate Nitroaniline Azobenzene Methyl-4,6-Dinitrophenol Bromophenyl Phenyl Ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-N-Butylphthalate Fluoranthene Pyrene Butylbenzylphthalate Benzo(a)Anthracene Chrysene Bis (2-Ethylhexyl) Phthalate Di-N-Octylphthalate Benzo (b) Fluoranthene Benzo (k) Fluoranthene Benzo (a) Pyrene Indeno (,2,3-c,d) Pyrene Dibenzo (a,h) Anthracene Benzo (g,h,i) Perylene Surrogate Compounds 2-Fluorophenol Phenol-d5 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-tribromophenol p-terphenyl-d4 Unit Reported: µg/kg or ppb % Surrogate Recovery (40-40) = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos, CA Tel: , Fax:

76 ANALYTICAL REPORT --- EPA 808A/8082 (Pesticides/PCBs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/07/4 Project Name: Alameda St.Widening-South Date Analyzed: 08/08/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID SAMPLE ID DF 4073B- 4073B B B-8 PB-0.5 PB3-0.5 PB5-0.5 PB7-0.5 Unit Reported: μg/kg or ppb 4073B-24 PB9-0.5 COMPOU Aldrin α-bhc β-bhc γ-bhc δ-bhc α-chlordane δ-chlordane 4,4'-DDD 4,4'-DDE 4,4'-DDT Dieldrin Endosulfan I Endosulfan II Endosulfan Sulfate Endrin Technical Chlordane Endrin Aldehyde Endrin Ketone Heptachlor Heptachlor Epoxide Methoxychlor Toxaphene Aroclor-06 Aroclor-22 Aroclor-232 Aroclor-242 Aroclor-248 Aroclor-254 Aroclor-260 Result RL Result RL Result RL Result RL Result RL Surrogate Compounds 2,4,5,6-tetrachloro-m-xylene % Surrogate Recovery (40-50) decachlorobiphenyl MI 0 = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: Fax:

77 ANALYTICAL REPORT --- EPA 808A/8082 (Pesticides/PCBs) --- Client Name: Pinnacle Date Sampled: 7/30~7/3/4 Project Manager: Keith Thompson Date Extracted: 08/07/4 Project Name: Alameda St.Widening-South Date Analyzed: 08/08/4 Sample Matrix: Soil Date Reported: 08/4/4 C&E LAB ID SAMPLE ID DF 4073B B B B-48 PB-0.5 PB3-0.5 PB5-0.5 PB7-0.5 Unit Reported: μg/kg or ppb 4073B-54 PB9-0.5 COMPOU Aldrin α-bhc β-bhc γ-bhc δ-bhc α-chlordane δ-chlordane 4,4'-DDD 4,4'-DDE 4,4'-DDT Dieldrin Endosulfan I Endosulfan II Endosulfan Sulfate Endrin Technical Chlordane Endrin Aldehyde Endrin Ketone Heptachlor Heptachlor Epoxide Methoxychlor Toxaphene Aroclor-06 Aroclor-22 Aroclor-232 Aroclor-242 Aroclor-248 Aroclor-254 Aroclor-260 Result RL Result RL Result RL Result RL Result RL Surrogate Compounds % Surrogate Recovery (40-50) 2,4,5,6-tetrachloro-m-xylene decachlorobiphenyl MI = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. MI = Matrix Interference; unquantifiable due to coeluting organics in sample Bentley Place, Cerritos CA Tel: Fax:

78 I. Laboratory Control Spike (LCS) Recovery Date Analyzed: 08/08/4 LCS ID: C-HERB40808LC QC REPORT --- EPA 85A (Chlorinated Herbicides) --- ANALYTE 2,4,5-T 2,4,5-TP(Silvex) DINOSEB LCS % ACP %CL II. Matrix Spike (MS)/Matrix Spike Duplicate(MSD) Date Analyzed: 08/08/4 QC Batch: C-HERB40808MS ANALYTE MS MSD RPD ACP %CL 2,4,5-T ACP RPD 30 III. Method Blank Date Analyzed: 08/08/4 Unit: mg/kg COMPOU 2,4-D 2,4-DB 2,4,5-T Dalapon Dicamba Dichloroprop REPORTING LIMIT RESULT Dinoseb MCPA MCPP Silvex COMPOU REPORTING LIMIT 20.0 RESULT Surrogate Compounds DCAA % Surr.Rec. (43-69) 24% = Not detected at the indicated reporting limit Bentley Place, Cerritos, CA Tel: Fax:

79 QC REPORT M (Diesel) --- I. Laboratory Control Sample Date Analyzed: 08/06/4 LCS ID: TPH40806LC ANALYTE Diesel LCS % 83 ACP %CL II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: 08/06/4 QC Batch : TPH30806MS ANALYTE MS % MSD % RPD ACP%CL ACP RPD Diesel III. Method Blank Date Analyzed: 08/06/4 Unit: mg/kg COMPOU REPORTING LIMIT RESULT Diesel Surrogate Compounds % Surr. Rec. (70-30) BFB 99 = Not detected at the indicated reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

80 I. Laboratory Control Sample QC REPORT --- EPA 600B (Metalsl) --- Date Analyzed: LCS ID: 08/05/4 MET40805LC ANALYTE LCS % ACP %CL Arsenic Selenium Cadmium Lead Copper(Cu) II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: 08/05/4 QC Batch #: MET40805MS 4073B-60 ANALYTE MS % MSD % Arsenic Selenium 8 80 Cadmium Lead Copper RPD ACP %CL ACP RPD III. Method Blank Date Analyzed: 08/05/4 COMPOU REPORTING LIMIT RESULT COMPOU Antimony (Sb) 2 Molybdenum (Mo) Arsenic (As) Nickel (Ni) Barium (Ba) Selenium (Se) Berryllium (Be) Silver (Ag) Cadmium (Cd) 0.5 Thallium (Tl) Chromium (Cr) Vanadium (V) Cobalt (Co) Zinc (Zn) Copper (Cu) Lead (Pb) REPORTING LIMIT 2 2 Unit: mg/kg RESULT = Not detected at the indicated reporting limit Bentley Place,Cerritos CA Tel: Fax:

81 I. Laboratory Control Sample Date Extracted: 08/07/4 Date Analyzed: 08//4 LCS ID: PCB408LCS QC REPORT --- EPA 8082(PCBs) --- ANALYTE Aroclor-260 LCS % 73 ACP%CL 56-3 II. Matrix Spike/Matrix Spike Duplicate Date Extracted: 08/07/4 Date Analyzed: 08//4 QC Batch: PCB408MS ANALYTE LCS % ACP%CL Aroclor III. Method Blank Date Extracted: 08/07/4 Date Analyzed: 08//4 Unit: µg/kg COMPOUDN Aroclor-06 Aroclor-22 Aroclor-232 Aroclor-242 Aroclor-248 Aroclor-254 Aroclor-260 REPORTING LIMIT RESULT Surrogate Compounds 2,4,5,6-tetrachloro-m-xylene decachlorobiphenyl % Surr. Rec. (40-50) = Not detected at the indicated reporting limit. 448 E. Firestone Blvd., Santa Fe Springs, CA Tel: , Fax:

82 I. Laboratory Control Sample Date Extracted: 08/07/4 Date Analyzed: 08/07/4 LCS ID: PEST40807LC ANALYTE gamma-bhc Heptachlor Aldrin Dieldrin Endrin 4,4'-DDT II. Matrix Spike/Matrix Spike Duplicate Date Extracted: Date Analyzed: QC Batch: ANALYTE gamma-bhc III. Method Blank Date Extracted: Date Analyzed: Aldrin a-bhc β-bhc γ-bhc δ-bhc Chlordane 4,4'-DDD 4,4'-DDE 4,4'-DDT Dieldrin MS % 74 32(M) Heptachlor Aldrin Dieldrin Endrin 03 4,4'-DDT COMPOUDN 08/07/4 08/07/4 PEST40807MS 08/07/4 08/07/4 LCS % QC REPORT --- EPA 808A (Pesticides) --- ACP %CL MSD % 47 9(M) NR(V-2) RPD NR REPORTING LIMIT RESULT COMPOUDN 2.00 Endosulfan I 2.00 Endosulfan II 2.00 Endosulfan Sulfate 2.00 Endrin 2.00 Endrin Aldehyde 2.00 Endrin Ketone 2.00 Heptachlor 4.00 Heptachlor Epoxide 2.00 Methoxychlor 2.00 Toxaphene ACP%CL ACP RPD REPORTING LIMIT Unit: µg/kg RESULT Surrogate Compounds 2,4,5,6-tetrachloro-m-xylene decachlorobiphenyl % Surr. Rec. (40-50) = Not detected at the indicated reporting limit. V-2 =Out-of-Range recovery was due to sample Heterogeneity. M=Matrix interference NR=Not Reported 3824 Bentley Place, Cerritos, CA Tel: Fax:

83 QC REPORT --- EPA I. Laboratory Control Sample Date Analyzed: 08/0/4 LCS ID: TRPH4080LC ANALYTE TRPH LCS % 05 ACP %CL II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: 08/0/4 QC Batch : TRPH4080MS ANALYTE MS % MSD % RPD ACP%CL ACP RPD TRPH III. Method Blank Date Analyzed: 08/0/4 Unit: mg/kg COMPOU REPORTING LIMIT RESULT TRPH 0 = Not detected at the indicated reporting limit Bentley Place, Cerritos, CA Tel: , Fax:

84 I. Laboratory Control Sample Date Analyzed: LCS ID: ANALYTE,-Dichloroethene Benzene Trichloroethene Toluene Chlorobenzene 08/0/4 VOC4080LC II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: QC Batch: ANALYTE,-Dichloroethene Benzene Trichloroethene Toluene Chlorobenzene III. Method Blank Date Analyzed: 08/0/4 LCS % /0/4 VOC4080MS MS % QC REPORT --- EPA 8260B (VOC) --- ACP %CL MSD % RPD ACP%CL ACP RPD Unit: µg/kg COMPOU Reporting Reporting Reporting RESULT COMPOU RESULT COMPOU RESULT Limit Limit Limit Acetone 5,2-Dichlorobenzene 2 Methylene Chloride 2 Benzene,3-Dichlorobenzene 2 4-Methyl-2-Pentanone 2 Bromodichloromethane 2,4-Dichlorobenzene 2 Styrene 2 Bromoform 2 Dichlorodifluoromethane 2 Isopropylbenzene 2 Bromomethane 2,-Dichloroethane 2 4-Isopropyltoluene 2 2-Butanone (MEK) 2,2-Dichloroethane 2,,2,2-Tetrachloroethane 2 Carbon Disulfide 2,-Dichloroethene 2 Tetrachloroethene 2 Carbon Tetrachloride 2 cis-,2-dichloroethene 2 Toluene Chlorobenzene 2 trans-,2-dichloroethene 2,2,4-Trichlorobenzene 2 Chloroethane 2,2-Dichloropropane 2,,-Trichloroethane 2 Chloroform 2 trans-,3-dichloropropene 2,,2-Trichloroethane 2 Chloromethane 5 cis-,3-dichloropropene 2 Trichloroethene 2 Cyclohexane 2 Ethylbenzene Trichlorofluoromethane 2 Dibromochloromethane 2 2-Hexanone 2,,2-Trichlorotrifluoroethane 2,2-Dibromo-3-Chloropropane 2 Methyl Acetate 2 Vinyl Chloride 5,2-Dibromoethane 2 Methylcyclohexane 2 Total Xylenes Surrogate Compounds % Surr. Rec. (70-30) Dibromofluoromethane 03,2-Dichloroethane-d4 99 Toluene-D Bromofluorobenzene 98 = Not detected at the indicated reporting limit Bentley Place, Cerritos, CA Tel: Fax:

85 I. Laboratory Control Sample Date Analyzed: LCS ID: ANALYTE,-Dichloroethene Benzene Trichloroethene Toluene Chlorobenzene 08/06/4 VOC40806LC II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: QC Batch: ANALYTE,-Dichloroethene Benzene Trichloroethene Toluene Chlorobenzene III. Method Blank Date Analyzed: 08/06/4 LCS % /06/4 VOC40806MS MS % QC REPORT --- EPA 8260B (VOC) --- ACP %CL MSD % RPD ACP%CL ACP RPD Unit: µg/kg COMPOU Reporting Reporting Reporting RESULT COMPOU RESULT COMPOU RESULT Limit Limit Limit Acetone 5,2-Dichlorobenzene 2 Methylene Chloride 2 Benzene,3-Dichlorobenzene 2 4-Methyl-2-Pentanone 2 Bromodichloromethane 2,4-Dichlorobenzene 2 Styrene 2 Bromoform 2 Dichlorodifluoromethane 2 Isopropylbenzene 2 Bromomethane 2,-Dichloroethane 2 4-Isopropyltoluene 2 2-Butanone (MEK) 2,2-Dichloroethane 2,,2,2-Tetrachloroethane 2 Carbon Disulfide 2,-Dichloroethene 2 Tetrachloroethene 2 Carbon Tetrachloride 2 cis-,2-dichloroethene 2 Toluene Chlorobenzene 2 trans-,2-dichloroethene 2,2,4-Trichlorobenzene 2 Chloroethane 2,2-Dichloropropane 2,,-Trichloroethane 2 Chloroform 2 trans-,3-dichloropropene 2,,2-Trichloroethane 2 Chloromethane 5 cis-,3-dichloropropene 2 Trichloroethene 2 Cyclohexane 2 Ethylbenzene Trichlorofluoromethane 2 Dibromochloromethane 2 2-Hexanone 2,,2-Trichlorotrifluoroethane 2,2-Dibromo-3-Chloropropane 2 Methyl Acetate 2 Vinyl Chloride 5,2-Dibromoethane 2 Methylcyclohexane 2 Total Xylenes Surrogate Compounds % Surr. Rec. (70-30) Dibromofluoromethane 02,2-Dichloroethane-d4 00 Toluene-D Bromofluorobenzene 06 = Not detected at the indicated reporting limit Bentley Place, Cerritos, CA Tel: Fax:

86 QC REPORT --- EPA 8270C --- III. Method Blank Date Extracted: 08/2/4 Date Analyzed: 08/2/4 Unit: µg/kg COMPOU Reporting Reporting RESULT COMPOU Limit Limit RESULT N-nitrosodimethylamine 500 2,4-Dinitrotoluene 250 Bis (2-Chloroethyl) Ether 250 2,4-Dinitrophenol Chlorophenol 250 Fluorene 250 Phenol Chlorophenyl Phenyl Ether 250,3-Dichlorobenzene 250 Diethylphthalate 250,4-Dichlorobenzene Nitroaniline 500,2-Dichlorobenzene 250 Azobenzene 250 Bis (2-Chloroisopropyl) Ether 250 4,6-Dinitro-2-Methyl Phenol 250 Hexachloroethane Bromophenyl Phenyl Ether Methyl Phenol 250 Hexachlorobenzene 250 N-Nitrosodi-N-Propylamine 250 Pentachlorophenol Methylphenol 250 Phenanthrene 250 Nitrobenzene 250 Anthracene 250 Isophorone 250 Carbazole Nitrophenol 500 Di-N-Butylphthalate 250 2,4-Dimethylphenol 250 Fluoranthene 250 Bis (2-Chloroethoxy) Methane 250 Pyrene 250 2,4-Dichlorophenol 250 Butylbenzylphthalate 250,2,3-Trichlorobenzene 250 Benzo(a)Anthracene 250 Naphthalene 250 Chrysene Chloroaniline 500 Bis (2-Ethylhexyl) Phthalate 250 Hexachlorobutadiene 250 Di-N-Octylphthalate 250 -Methylnaphthalene 250 Benzo (b) Fluoranthene Chloro-3-Methylphenol 250 Benzo (k) Fluoranthene 250 Hexachlorocyclopentadiene 250 Benzo (a) Pyrene 250 2,4,6-Trichlorophenol 250 Indeno (,2,3-c,d) Pyrene 250 2,3,4-Trichlorophenol 250 Dibenzo (a,h) Anthracene 250 -Chloronaphthalene 250 Benzo (g,h,i) Perylene Nitroaniline 500 Acenaphthylene 250 Dimethyl Phthalate Fluorophenol 2,6-Dinitrotoluene 250 Phenol-d5 Acenaphthene 250 Nitrobenzene-d5 3-Nitroaniline Fluorobiphenyl 4-Nitrophenol 000 2,4,6-tribromophenol Dibenzofuran 250 p-terphenyl-d4 Surrogate Compounds % Surr Rec (40-40) Bentley Place, Cerritos, CA Tel: Fax:

87 I. Laboratory Control Sample Date Extracted: 08/2/4 Date Analyzed: 08/2/4 LCS ID: SVOC4082LC QC REPORT --- EPA 8270C --- ANALYTE LCS % ACP %CL Phenol Chlorophenol ,4-Dichlorobenzene N-Nitroso-di-n-propy ,2,4-Trichlorobenze Chloro-3-methylphe Acenaphthene ,4-Dinitrotoluene Nitrophenol Pentachlorophenol Pyrene II. Matrix Spike/Matrix Spike Duplicate Date Extracted: 08/2/4 Date Analyzed: 08/2/4 QC Batch #: SVOC4082MS ANALYTE MS % MSD % RPD ACP %CL ACP RPD Phenol Chlorophenol ,4-Dichlorobenzene N-Nitroso-di-n-propy ,2,4-Trichlorobenze Chloro-3-methylphe Acenaphthene ,4-Dinitrotoluene Nitrophenol Pentachlorophenol Pyrene Bentley Place,Cerritos CA Tel: Fax:

88 A CHAIN OF CUSTODY RECORD It.073 J [ Site:!ktrFfYr 5: tjld?n!a!6=-stju72-project M"'M~ "'''' D MALVEY D THO MPSON ~ ' ''' '' Ho;;.''' :::-...:: ::0-..., Address: twtff?...' 'Cex06eS 5 7iN4t')""@,o ~ a m p l c d By: :rg MA LVEY a THOM PSON.. /...-rl"& 70rJ I c:a Laboratory: {2.9-{. LftPJJS, I J=Jar Sample I Sample I Sa mp,le PINNACLE LABORATORY EPA 5035 I TPH I TRPH I VOC IOxygenale-I SVOC T = T ube SAMPLE In ID Time Date Ma tr ix V = VOA IfB J- 0, $.,30 b/~h'l Is,I L. ssi'u${»: m2-0,5 IPAZ -Z,S Iffl2- --{;,o IPA 3-D.5 9 Is-' II I <?70 K 'ft'z-5 arec (EnCure) GillIWO EPA4\8.\ EPA8260n EPA8260B EPA8270C EPA 80lSM IPA '0 ~ I K. IA3'~ -5:0 9AJ 54-t»< Cfsu IPAl! -2,S )( ~ I ~ rca: P6lf -s:o It % I p~ 5-0,,S'" / 04 0 ffis -2..S; /0.5 -c 'd--... I Y-. ffis" - ~o los? IA;C,-Os IllS " IF80 --2"S" IIV{' x. r..t... I \,( I pe,~ -~,O /(~5 I I p~7-0, <)" / '..)D I ff9 ~ z. $ liz-to.. If I ~ II ~ I '\U ~ If 0-5 X). Ah j I Z.O,, Relinquished By: DatelTime: Received By: _ h. ~_/ ;X DatelTime: { f ( I 4 Received By: DatcITime: Relinquished By, ~~ Da tejtime: 4/~t pi " K lb(' Pesticides PCB's Till e 22 /-IG2-6 EPA Metals g ISt> ~ x: '>( x, I I I X ><-.. I I X ~ I I Ix / -...J "5V 0 c, ~ PINNACLE ENVIRONMENTAL TECHNOLOGIES 2 Santa Maria --ro~ rz-l~w TEL: (949) Foothill Ranch, CA 9260 FAX: (949)

89 A./=Jar SAMPLE ID ID Time Date Ma tr ix T = Tube V = VOA CHAIN OF CUSTODY RECORD Site: ~5T {N/tJEN"y & - 56yTlt Project Manager: 0 MALVEY SJ-THOMPSON c7 3L!3 TA-(NORiY- 24R - 4lHR. l.arwqcll ED"' - ~\AL VEY ~THOMPSON Address: ~'t 8e.JC>tJeS. {7) {JvAtt (.A ~T Sampled By: /.NJ l-h"'v~ i, U La borato ry: e-u L.A-l3S l'agc LorL PINNACLE LABORATORY Sample Sample Sa mple Pesticides EPA5035 TPH TRPH VOC Oxygena tes SVOC PCB's Tille 22 (EnCo re) GfDlWO EPA48.t EPAS260B EPA8260B EPA8270C EPA Mclllis EPA805M 808/8082 Iffi"iS - 0,~ n S b..,j7jj4 50tL '5S.,Ih... )<-. )( I ~~ - 2,. S"" /?OO I ~ <. ~ \ I PA~ - ~~O r:?:iu PA4 - O.~ l'5lfo )( X 90' - z- ( /;;'::0 ~ e>l. J ~ ~9 - ~ O /i/'oi) Pi30-0. r l V-t,O fblo... z: S" l'-fl/o ')( X >< ft3~o - ~~ o IlI5IJ P8l l,.. 0. ) ISIS r- J< P())l l - ~~ /5 30 I v: K -.:.. PRJ}} - S.D / ~t.io \J ~8 ' '5 Xoo / ~,4- ~ \ ~ ~) {) X... 'I... ~ i7/ -5_o <'Gw (.'6,'3 - o.< "8~ - -: P~ 3 - Z.s icf- ()o )[ ""'l- '/.. pe, )3 '" ~ I() Cli O J ft \If - o. <: - Iq-;o \\. I \ I I I(JPJ )tj,/ 7-.S l? / 9'-/0 ~ J \. J ~ ri-- ~ _ wj~\ 'JC-..;:... ~ \ NOTES: Relinquished By: M "/4A DatcITimc: 7 3I rj ~ Relinquished By: Date/Time: rjp lt ~ULL-~N: Received-By; ~~ DatcITimc:,,'f3 : II,L/ Received By: DatcITime: l-m p 5" -rrph II T, SvO- _ ~ P "2- --rrptt PINNACLE ENVIRONMENTAL TECHNO LOGIES 2 Santa Maria TEL: (949) 47 0:3'69" ' Foothill Ranch, CA FA X: (949) {-f&z..6 ~l {b

90 A CHAIN OF CUSTODY RECORD...-::::.--.. /~07 3 /.]3 Site:~ ~ ko/lf;)e:'n,ng-~+ P r oj cc t ;U'... M:::"~. "-~,. 0 _ MALVEY g _. THOMPSON TA~ 2mR -.j8r ILAI{WQCB EDF - YES Address:llt!eP..-t H(?!.{JES 70 ~4 ~ Sampled BY' IkrMALVEY ~ THOM PS ON ~ - - I tjju--rl,j6'tcyj Ck Laboratory: ' C.f2. " LA-6S Pa ge..3 or$ J=Ja r Pesticides PINNAe LABORATORY II Sample I Sample I Samp,le T=Tube EPA SOJS II TPH VOC IO.ygcnales I SVOC I l'cb's T il l e 2 2 ~ SAMPLE ID (EnCQre) ID Time Date Matrix GmfWO I TRP H IV = VOA EPA 8260B EPA 8260B EPA 8270C EPA EPA 805M EPA 48. M etjil5? 'SO Ip?V l.j - 5','D >t. /00 I f I I X" Iqm b/ll/i'; I SoiL.-- I$~ ";t.. ItJAJS - 0 (" x. IP;? JS- '.., {" Il oul ~ )(' ~ S": 0 I/ "AJ PfJJ~ - 0, (,()f) If Bi" - 2, r //0 Ip-PJ /l, - s. '0 I/ru:J pf3j7 - o, 5" Irt)b K ~ IptJ J7-2 5 I/ 'Z-CO.(J~ () - ~o I/ v l O ~ J'g - O. ~ /'Z-lfu P6)'b... z.s". ~ v-: '>( ok p< ~ -I ~ IJ-V S"O 'Ii 'If... ; P~ llj - ~ O /'?;$CJ tjthl'... o.s ~3V I I y.., P6l:f ~ Z S / ; l.{o ~ 'I.. ro,q - S'.O /3.:;0 Ip8w "" o. ~ I/o// D 'Pe>:u " 2.; IIlfuJ " I 30 ~ ~.O :;0 If ~~) ~ o.~ ~ / II scrd '\lj ' Relinq uished By, ~ DatcfTimc: 7{J,tf \ >'-. \ II '-0 '\/ Relinquished By: '9( y:, Date/T ime: hr( I t./ - ~ I I I 5voc... -rep IZ-~ P INNAC LE ENVIRONMENTAL TECHNOLOGIES 2 Santa Maria TEL: (949) Foothill Ranch, CA 9260 FAX: (949) lr eccivcd By: / DateITimc: r [Rece ived By: Date/Time: ~?<"

91 A PINNACLE SAM.PL E ID Irri?z I - :z~ :r- IPbZ-I- $'.:' I P82'Z. - 0.)" I ~-z.'"l < I ffi-z-... S, D \ \ - PIJ-'2.- CHAIN OF CUSTODY RECORD f!( THOMPSON '/~~7 3f$..."'" _ ----, I TAT( "O~ - 24HR I R Site: fttatelyt c;;;: tjlt:o.e)jra/6: - ~Jt+ Project Manager: n NlALVEY Address: fl/jt.l'i eej.i:'6c.~ J'O WVIJ-It2IK S;:-Sa mpled By'. N)4U.-N 6-..., J=-Jar Laboratory: LABORATORY Sample I Sample I Samp.le IT = Tu be EPA 5035 II TPH (EnCore) GfD /W O I TRPH ID Time Date Matrix V = V OA EPA SOl5M EPA4 8. ")/0 7b://r I ~O / / ~7b68 ~ I /~ I I 5"'0 I T /C::-5"O I I I / I J I I ~ w I Ihov i VJ T' {/ I~/ ) /~W I' ~ '>( x K fj(imalvey - -(;;] THOMPSON, 'C9- ' L.At.:. Pesticides VOC IOXYl:c nal es I SVOC I PC B's EPA 8260B EPA 8260B EPA 8270C EPA ~ I~ ~ Iry(, LARWQCB EDF - YES I~ Page -Of-i- T ille 22 Itf.e. Metals ~ / 5"0 '>< ~ /. AY ;/ Relinquished BY '~ DateITimc: ~ Relinquished By: Date/Time: Received By:.-r D a teit im c :~ Received By: DateITimc: o I I r $\0 c : -r<3? lz-'f2.p#- PINNACLE ENVIRONMENTAL TECHNOLOGIES 2 Santa Mar ia TE L: (949) Foothill Ranch, CA 9260 FA X : (949)

92 September 25, 204 ELAP Certificate No: 2268 Mr. Keith Thompson Pinnacle Env. Technologies 2 Santa Maria Foothill Ranch, CA 9260 Project: C&E ID: Alameda St. Widening-South 4073B Dear Mr. Thompson, Enclosed is an analytical report for the sample(s) received by Chemical & Environmental Laboratories, Inc. on July 3, 204 and analyzed as indicated in the attached chain-ofcustody. Unless otherwise noted, no problems were encountered during receiving, preparation and analysis of these samples. Please contact me at (562) if you have any questions regarding this report. Sincerely, Larry Zhang, Ph.D. Laboratory Director 3824 Bentley Place, Cerritos, CA Tel: , Fax:

93 ANALYTICAL REPORT --- EPA 600B (STLC Lead) --- Client Name: Pinnacle Env. Technologies Date Sampled: 7/3/204 Project Manager: Keith Thompson Date Analyzed: 9/24/204 Project Name: Alameda St. Widening-South Date Reported: 9/25/204 Sample Matrix: Soil Unit Reported: mg/l or ppm C&E LAB ID SAMPLE ID DF RESULT RL 4073B-36 PB B-45 PB B-54 PB B-63 PB B-64 PB = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. 448 E. Firestone Blvd., Santa Fe Springs, CA Tel: , Fax:

94 ANALYTICAL REPORT --- EPA 600B (TCLP Lead) --- Client Name: Pinnacle Env. Technologies Date Sampled: 07/3/4 Project Manager: Keith Thompson Date Analyzed: 9/24/204 Project Name: Alameda St. Widening-South Date Reported: 9/25/204 Sample Matrix: Soil Unit Reported: mg/l or ppm C&E LAB ID SAMPLE ID DF RESULT RL 4073B-36 PB B-45 PB B-54 PB B-63 PB B-64 PB = Not detected at the indicated reporting limit; DF = Dilution Factor; RL = Reporting limit. 448 E. Firestone Blvd., Santa Fe Springs, CA Tel: , Fax:

95 I. Laboratory Control Sample QC REPORT --- EPA 600B (Lead) --- Date Analyzed: LCS ID: 09/24/4 MET40924LC ANALYTE LCS % ACP %CL Lead II. Matrix Spike/Matrix Spike Duplicate Date Analyzed: QC Batch #: 09/24/4 MET40924MS ANALYTE MS % MSD % Lead III. Method Blank Date Analyzed: 09/24/4 COMPOU REPORTING LIMIT RESULT Lead (Pb) 0. RPD 0 ACP %CL ACP RPD = Not detected at the indicated reporting limit Bentley Place,Cerritos CA Tel: Fax:

96 A CHAIN OF CUSTODY RECORD It.073 J [ Site:!ktrFfYr 5: tjld?n!a!6=-stju72-project M"'M~ "'''' D MALVEY D THO MPSON ~ ' ''' '' Ho;;.''' :::-...:: ::0-..., Address: twtff?...' 'Cex06eS 5 7iN4t')""@,o ~ a m p l c d By: :rg MA LVEY a THOM PSON.. /...-rl"& 70rJ I c:a Laboratory: {2.9-{. LftPJJS, I J=Jar Sample I Sample I Sa mp,le PINNACLE LABORATORY EPA 5035 I TPH I TRPH I VOC IOxygenale-I SVOC T = T ube SAMPLE In ID Time Date Ma tr ix V = VOA IfB J- 0, $.,30 b/~h'l Is,I L. ssi'u${»: m2-0,5 IPAZ -Z,S Iffl2- --{;,o IPA 3-D.5 9 Is-' II I <?70 K 'ft'z-5 arec (EnCure) GillIWO EPA4\8.\ EPA8260n EPA8260B EPA8270C EPA 80lSM IPA '0 ~ I K. IA3'~ -5:0 9AJ 54-t»< Cfsu IPAl! -2,S )( ~ I ~ rca: P6lf -s:o It % I p~ 5-0,,S'" / 04 0 ffis -2..S; /0.5 -c 'd--... I Y-. ffis" - ~o los? IA;C,-Os IllS " IF80 --2"S" IIV{' x. r..t... I \,( I pe,~ -~,O /(~5 I I p~7-0, <)" / '..)D I ff9 ~ z. $ liz-to.. If I ~ II ~ I '\U ~ If 0-5 X). Ah j I Z.O,, Relinquished By: DatelTime: Received By: _ h. ~_/ ;X DatelTime: { f ( I 4 Received By: DatcITime: Relinquished By, ~~ Da tejtime: 4/~t pi " K lb(' Pesticides PCB's Till e 22 /-IG2-6 EPA Metals g ISt> ~ x: '>( x, I I I X ><-.. I I X ~ I I Ix / -...J "5V 0 c, ~ PINNACLE ENVIRONMENTAL TECHNOLOGIES 2 Santa Maria --ro~ rz-l~w TEL: (949) Foothill Ranch, CA 9260 FAX: (949)

97 A./=Jar SAMPLE ID ID Time Date Ma tr ix T = Tube V = VOA CHAIN OF CUSTODY RECORD Site: ~5T {N/tJEN"y & - 56yTlt Project Manager: 0 MALVEY SJ-THOMPSON c7 3L!3 TA-(NORiY- 24R - 4lHR. l.arwqcll ED"' - ~\AL VEY ~THOMPSON Address: ~'t 8e.JC>tJeS. {7) {JvAtt (.A ~T Sampled By: /.NJ l-h"'v~ i, U La borato ry: e-u L.A-l3S l'agc LorL PINNACLE LABORATORY Sample Sample Sa mple Pesticides EPA5035 TPH TRPH VOC Oxygena tes SVOC PCB's Tille 22 (EnCo re) GfDlWO EPA48.t EPAS260B EPA8260B EPA8270C EPA Mclllis EPA805M 808/8082 Iffi"iS - 0,~ n S b..,j7jj4 50tL '5S.,Ih... )<-. )( I ~~ - 2,. S"" /?OO I ~ <. ~ \ I PA~ - ~~O r:?:iu PA4 - O.~ l'5lfo )( X 90' - z- ( /;;'::0 ~ e>l. J ~ ~9 - ~ O /i/'oi) Pi30-0. r l V-t,O fblo... z: S" l'-fl/o ')( X >< ft3~o - ~~ o IlI5IJ P8l l,.. 0. ) ISIS r- J< P())l l - ~~ /5 30 I v: K -.:.. PRJ}} - S.D / ~t.io \J ~8 ' '5 Xoo / ~,4- ~ \ ~ ~) {) X... 'I... ~ i7/ -5_o <'Gw (.'6,'3 - o.< "8~ - -: P~ 3 - Z.s icf- ()o )[ ""'l- '/.. pe, )3 '" ~ I() Cli O J ft \If - o. <: - Iq-;o \\. I \ I I I(JPJ )tj,/ 7-.S l? / 9'-/0 ~ J \. J ~ ri-- ~ _ wj~\ 'JC-..;:... ~ \ NOTES: Relinquished By: M "/4A DatcITimc: 7 3I rj ~ Relinquished By: Date/Time: rjp lt ~ULL-~N: Received-By; ~~ DatcITimc:,,'f3 : II,L/ Received By: DatcITime: l-m p 5" -rrph II T, SvO- _ ~ P "2- --rrptt PINNACLE ENVIRONMENTAL TECHNO LOGIES 2 Santa Maria TEL: (949) 47 0:3'69" ' Foothill Ranch, CA FA X: (949) {-f&z..6 ~l {b

98 A CHAIN OF CUSTODY RECORD...-::::.--.. /~07 3 /.]3 Site:~ ~ ko/lf;)e:'n,ng-~+ P r oj cc t ;U'... M:::"~. "-~,. 0 _ MALVEY g _. THOMPSON TA~ 2mR -.j8r ILAI{WQCB EDF - YES Address:llt!eP..-t H(?!.{JES 70 ~4 ~ Sampled BY' IkrMALVEY ~ THOM PS ON ~ - - I tjju--rl,j6'tcyj Ck Laboratory: ' C.f2. " LA-6S Pa ge..3 or$ J=Ja r Pesticides PINNAe LABORATORY II Sample I Sample I Samp,le T=Tube EPA SOJS II TPH VOC IO.ygcnales I SVOC I l'cb's T il l e 2 2 ~ SAMPLE ID (EnCQre) ID Time Date Matrix GmfWO I TRP H IV = VOA EPA 8260B EPA 8260B EPA 8270C EPA EPA 805M EPA 48. M etjil5? 'SO Ip?V l.j - 5','D >t. /00 I f I I X" Iqm b/ll/i'; I SoiL.-- I$~ ";t.. ItJAJS - 0 (" x. IP;? JS- '.., {" Il oul ~ )(' ~ S": 0 I/ "AJ PfJJ~ - 0, (,()f) If Bi" - 2, r //0 Ip-PJ /l, - s. '0 I/ru:J pf3j7 - o, 5" Irt)b K ~ IptJ J7-2 5 I/ 'Z-CO.(J~ () - ~o I/ v l O ~ J'g - O. ~ /'Z-lfu P6)'b... z.s". ~ v-: '>( ok p< ~ -I ~ IJ-V S"O 'Ii 'If... ; P~ llj - ~ O /'?;$CJ tjthl'... o.s ~3V I I y.., P6l:f ~ Z S / ; l.{o ~ 'I.. ro,q - S'.O /3.:;0 Ip8w "" o. ~ I/o// D 'Pe>:u " 2.; IIlfuJ " I 30 ~ ~.O :;0 If ~~) ~ o.~ ~ / II scrd '\lj ' Relinq uished By, ~ DatcfTimc: 7{J,tf \ >'-. \ II '-0 '\/ Relinquished By: '9( y:, Date/T ime: hr( I t./ - ~ I I I 5voc... -rep IZ-~ P INNAC LE ENVIRONMENTAL TECHNOLOGIES 2 Santa Maria TEL: (949) Foothill Ranch, CA 9260 FAX: (949) lr eccivcd By: / DateITimc: r [Rece ived By: Date/Time: ~?<"