SOURCE WATER ASSESSMENT SUMMARY BROCHURE

Transcription

1 SOURCE WATER ASSESSMENT SUMMARY BROCHURE CITY OF ESTACADA - PWS # WHAT IS A SOURCE WATER ASSESSMENT? The Source Water Assessment was recently completed by the Department of Environmental Quality (DEQ) and the Oregon Health Division (OHD) to identify the surface areas (and/or subsurface areas) that supply water to City of Estacada s public water system intake and to inventory the potential contaminant sources that may impact the water supply. WHY WAS IT COMPLETED? The Source Water Assessment was completed to provide information so that City of Estacada s public water system staff/operator, consumers, and community citizens can begin developing strategies to protect the source of their drinking water, and to minimize future public expenditures for drinking water treatment. The assessment was prepared under the requirements and guidelines of the Federal Safe Drinking Water Act (SDWA). WHAT AREAS ARE INCLUDED IN CITY OF ESTACADA S DRINKING WATER PROTECTION AREA? The drinking water for City of Estacada is supplied by an intake on the Clackamas River. This public water system serves approximately 1,910 citizens. The intake is located in the Lower Clackamas and Middle Clackamas River Watershed in the Clackamas Sub-Basin of the Willamette Basin. The US Forest Service (USFS) Ripplebrook Ranger Station/Timberlake Job Corps Center intake for their public water system is also located on the Clackamas River upstream of the Estacada intake. This source water assessment addresses the geographic area providing water to Estacada s intake (the drinking water protection area) between Estacada s intake and the upstream intake for the USFS. The boundaries of this portion of the drinking water protection area are illustrated on the figures attached to this summary. The drinking water protection area for Estacada totals 673 square miles and includes approximately 532 square miles upstream of the Estacada intake and an additional 141 square miles upstream of the USFS intake. Included in Estacada s portion of the drinking water protection area are a number of tributaries to the main stem, including Linglebeck Creek, the North Fork and South Fork of the Clackamas River, Memaloose Creek, Fish Creek, Big Creek, Cripple Creek, the Collawash River, and the Roaring River. WHAT ARE THE POTENTIAL SOURCES OF CONTAMINATION TO CITY OF ESTACADA S PUBLIC DRINKING WATER SUPPLY? The primary intent of this inventory was to identify and locate significant potential sources of contaminants of concern. The delineated drinking water protection area is primarily dominated by agricultural, residential and rural land uses between Estacada s intake and the North Fork Reservoir and is primarily dominated by managed forest lands above the North Fork Reservoir. Because of the large size of the drinking water protection area and DEQ s limited resources, the inventory was limited to the lower portion of the watershed. The Upper Clackamas sub-basin (upstream of the mouth of the Collawash river) and the Collawash river sub-basins were not surveyed for potential contaminant sources. It is highly recommended that the public water system and/or community enhance the inventory by identifying potential contamination sources in these areas through further research and local input. The potential contaminant sources identified in the watershed include several residential developments; high-use recreational areas; grazing areas; managed forests; timber management operations and work centers; the hydroelectric plant/dam; and the transmission line and transportation corridors. This provides a quick look at the existing potential sources of contamination that could, if improperly managed or released, impact the water quality in the watershed.

2 WHAT ARE THE RISKS FOR OUR SYSTEM? A total of 34 potential contaminant sources were identified in City of Estacada s drinking water protection area. Thirty (30) of these are located in the sensitive areas and are high- to moderaterisk sources within sensitive areas. The sensitive areas within the City of Estacada drinking water protection area include areas with high soil permeability, high soil erosion potential, high runoff potential and areas within 1000 from the river/streams. The sensitive areas are those where the potential contamination sources, if present, have a greater potential to impact the water supply. The information in this assessment provides a basis for prioritizing areas in and around our community that are most vulnerable to potential impacts and can be used by the City of Estacada community to develop a voluntary Drinking Water Protection Plan. NEED MORE INFORMATION? City of Estacada s Source Water Assessment Report provides additional details on the methodology and results of this assessment and also provides a summary of results for the protection area upstream of the USFS intake. The full report is available for review at: Contact the City Public Works staff if you would like additional information on City of Estacada s Source Water Assessment results.

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4 1 Furniture/Lumber/P Rocky's Furniture Cadonau Rd, ~0.7km Estacada Database (2) Within Moderate Spills, leaks, or improper handling of arts Stores Stripping & southeast of Hwy. 211 Field- sensitive hazardous chemical products and other Observation materials in inventory during Apparently a small business operating out of a private transportation, use, storage and disposal residence. may impact the drinking water supply. 2 Transmission Lines PGE High Tension Along river corridor Estacada Field- Within Higher Construction and corridor maintenance - Right-of-Ways Power Lines between Hwy 224 and the Observation sensitive may contribute to increased erosion and mainstem turbidity in drinking water supply. Over- Telephone and cable lines also present. application or improper handling of pesticides or fertilizers may impact 3 Transmission Lines PGE Cazadero Between Hwy. 224 and Estacada Field- Within Higher Construction and corridor maintenance - Right-of-Ways Hydroelectric Faraday Lake Observation sensitive may contribute to increased erosion and Plant/Dam Interview turbidity in drinking water supply. Overapplication or improper handling of pesticides or fertilizers may impact Upstream Reservoirs/Dams Moderate During major storm events, reservoirs may contribute to prolonged turbidity for downstream intakes for drinking water. Construction, fluctuating water levels, and heavy waterside use can increase erosion and turbidity in reservoir/drinking water source. Utility Stations - Higher Spills, leaks, or improper handling of Maintenance chemicals and other materials including Transformer PCBs during transportation, use, storage and disposal may impact the drinking water 4 Housing - High Estacada Mobile North side of Hwy. 224, Estacada Database (2) Within Moderate Improper use, storage, and disposal of Density (> 1 Village west of Faraday Rd. Field- sensitive household chemicals may impact the House/0.5 acres) Observation drinking water supply. Stormwater run-off or infiltration may carry contaminants to drinking water supply. 2/14/2003 Page 1 of 11

5 5 Managed Forest Managed forest - Slopes above Faraday Estacada Field- Within Higher Cutting and yarding of trees may Land - Clearcut unknown ownership Rd. between the North Observation sensitive contribute to increased erosion, resulting in Harvest (< 35 yrs.) Fork & Faraday Dams turbidity and chemical changes in drinking water supply. Over-application or improper handling of pesticides or fertilizers may impact drinking water source. 6 Junk/Scrap/Salvage Oregon Timber Faraday Rd., near east Estacada Field- Within Higher Spills, leaks, or improper handling of Yards Resources end of Faraday Lake Observation sensitive automotive chemicals, batteries, and other waste materials during storage and Small scale timber mgmt. operation with significant heavy disposal may impact the drinking water equipment storage and apparent salvage occurring on open ground. Wood/Pulp/Paper Higher Spills, leaks, or improper handling of wood Processing and preservatives and other chemicals during transportation, use, storage and disposal Small scale timber mgmt. operation with significant heavy may impact the drinking water supply. equipment storage and apparent salvage occurring on open ground. 7 Grazing Animals (> Chrysler Lane Surface Chrysler Estacada Field- Within Higher Improper storage and management of 5 large animals or Spiderweb Ranch Ln. (top of hill) Observation sensitive animal wastes may impact drinking water equivalent/acre) supply. Concentrated livestock may Wood lot clearing/thinning for hog pasture. contribute to erosion and sedimentation of surface water bodies. Managed Forest Higher Cutting and yarding of trees may Land - Clearcut contribute to increased erosion, resulting in Harvest (< 35 yrs.) turbidity and chemical changes in drinking Wood lot clearing/thinning for hog pasture. water supply. Over-application or improper handling of pesticides or fertilizers may impact drinking water source. 2/14/2003 Page 2 of 11

6 PWS# ESTACADA, CITY OF 8 Random Dump Private land - Bend in Moss Hill Rd., Estacada Field- Within Higher Illegal trash and debris containing unknown ownership south of Linglebeck Observation sensitive chemicals and hazardous materials may cause contamination to groundwater or surface water supply. Large appliances and other miscellaneous refuse. 9 Random Dump Private land - Moss Hill Rd. at Estacada Field- Within Higher Illegal trash and debris containing unknown ownership Linglebeck Creek Observation sensitive chemicals and hazardous materials may cause contamination to groundwater or surface water supply. Abandoned automobiles interspersed throughout Managed Forest Higher Cutting and yarding of trees may Land - Partial contribute to increased erosion, resulting in Harvest (< 10 yrs.) turbidity and chemical changes (ex: Abandoned automobiles interspersed throughout nitrates) in drinking water supply. Overapplication or improper handling of pesticides or fertilizers may impact 10 Other future Residential Darrow Rd. & Mountain Estacada Field- Within Moderate The impacts to this potential contaminant Active construction & land residential land use development/cons View Ln. Observation sensitive source will be addressed during the preparation at time of survey. truction enhanced inventory. Erosion control structures in place. Risk level assumes extension/connection of city water, wastewater, and storm sewer lines. 11 Junk/Scrap/Salvage Private land - End of Trail Rd. Estacada Field- Within Higher Spills, leaks, or improper handling of Yards unknown ownership Observation sensitive automotive chemicals, batteries, and other waste materials during storage and disposal may impact the drinking water Scrap autos and parts stored on open ground. 12 River Recreation - North Fork East side of Faraday Rd. Estacada Field- Within Moderate Inadequate disposal of human wastes may Heavy Use (inc. Reservoir Boat Observation sensitive contribute bacteria and nutrients to the campgrounds) Launch - PGE Interview drinking water supply. Heavy use may contribute to streambank erosion causing turbidity. Fuel spills and emissions may also contribute to contamination. 2/14/2003 Page 3 of 11

7 13 River Recreation - Promontory Park - Between North Fork Estacada Database (2) Within Moderate Inadequate disposal of human wastes may Heavy Use (inc. PGE Reservoir and Hwy. 224 Field- sensitive contribute bacteria and nutrients to the campgrounds) Observation drinking water supply. Heavy use may Marina and park for use by Interview contribute to streambank erosion causing PGE employees and guests. turbidity. Fuel spills and emissions may also contribute to contamination. Other Power Higher The impacts of this potential contaminant Boat/watercraft source will be addressed during the fueling area on pier enhanced inventory. Marina and park for use by over water PGE employees and guests. Parks Moderate Over-application or improper handling of pesticides/fertilizers may impact drinking water. Excessive irrigation may cause transport of contaminants through runoff. Heavy use along edge of waterbody may contribute to erosion, Marina and park for use by PGE employees and guests. Wastewater Higher Improper management of wastewater, Treatment treatment chemicals, or equipment Plants/Collection maintenance materials may impact Marina and park for use by Stations drinking water supply. PGE employees and guests. 14 Housing - High Silver Fox RV Park Hwy 224, across from Estacada Database (2) Outside Moderate Improper use, storage, and disposal of Density (> 1 Promontory Park Field- sensitive household chemicals may impact the House/0.5 acres) Observation areas. drinking water supply. Stormwater run-off Interview or infiltration may carry contaminants to drinking water supply. Wastewater Higher Improper management of wastewater, Treatment treatment chemicals, or equipment Plants/Collection maintenance materials may impact Stations drinking water supply. 2/14/2003 Page 4 of 11

8 15 Managed Forest Managed forest Ridges on SW side of Estacada Field- Outside Higher Cutting and yarding of trees may Land - Clearcut lands - unknown mainstem between Observation sensitive contribute to increased erosion, resulting in Harvest (< 35 yrs.) ownership Faraday Lake and the areas. turbidity and chemical changes in drinking Viewed from Hwy. 224 during North Fork Reservoir water supply. Over-application or improper survey. handling of pesticides or fertilizers may impact drinking water source. 16 Transportation - Highways 211 and Hwys. intersect just Estacada Field- Within Higher Vehicle use increases the risk for leaks or Freeways/State 224 below intake, 224 runs Observation sensitive spills of fuel & other haz. materials. Road Highways/Other parallel to the mainstem building, maintenance & use can increase Heavy Use Roads erosion/slope failure Over-application or improper handling of pesticides/fertilizers may impact water. 17 Drinking Water City of Estacada, North side of mainstem, Estacada Database (2) Within Moderate Treatment chemicals and equipment Treatment Plants Drinking Water just upstream of Hwy. Field- sensitive maintenance materials may impact Treatment Works 211 bridge Observation groundwater or surface water source. 18 Utility Stations - Utility Station - Day Hill Valley Estacada Database (2) Outside Higher Spills, leaks, or improper handling of Maintenance Cascade Utilities View Dr. Field- sensitive chemicals and other materials including Transformer & Airtouch Cellular Observation areas. PCBs during transportation, use, storage and disposal may impact the drinking water 19 Machine Shops Estacada Work Estacada River Lake Rd., Estacada Field- Within Higher Spills, leaks, or improper handling of Center, Mt. Hood just north of Hwy. 211 Observation sensitive solvents, metals, and other chemicals or NF materials during transportation, use, USFS field operations center. storage and disposal may impact the drinking water supply. Fleet/Trucking/Bus Moderate Spills, leaks, or improper handling of fuels, Terminals grease, solvents, and other materials from vehicle service, fueling, and parking areas may impact the drinking water USFS field operations center. 2/14/2003 Page 5 of 11

9 20 Managed Forest Managed forest Northwest side of Estacada Field- Outside Higher Cutting and yarding of trees may Land - Clearcut lands - BLM &/or Hillockburn Rd. between Observation sensitive contribute to increased erosion, resulting in Harvest (< 35 yrs.) USFS the 120 and 130 spurs areas. turbidity and chemical changes in drinking Active logging at time of water supply. Over-application or improper handling of pesticides or fertilizers may impact drinking water source. 21 River Recreation - Unofficial Junction of the North Estacada Field- Within Moderate Inadequate disposal of human wastes may Heavy Use (inc. campground Fork Clackamas and Observation sensitive contribute bacteria and nutrients to the campgrounds) Interview drinking water supply. Heavy use may Dispersed boating, fishing, and swimming. Mostly day-use with contribute to streambank erosion causing occasional camping. turbidity. Fuel spills and emissions may also contribute to contamination. 22 River Recreation - Unofficial Southeast bank of the Estacada Field- Within Moderate Inadequate disposal of human wastes may Heavy Use (inc. campground on upper North Fork Observation sensitive contribute bacteria and nutrients to the campgrounds) the mainstem Reservoir & adjacent Interview drinking water supply. Heavy use may Access via boat only. Reported Clackamas contribute to streambank erosion causing heavy summer-time use. turbidity. Fuel spills and emissions may also contribute to contamination. 23 Campgrounds/RV Lazy Bend South side of Hwy. 224 Estacada Database (2) Within Moderate Leaks or spills of automotive fluids or Parks Campground - just east of Memaloose Field- sensitive improperly managed septic systems and USFS Observation wastewater disposal may impact drinking Interview water supply. Heavy usage along edge of 24 River Recreation - Big Eddy Day At prominent mainstem Estacada Field- Within Moderate Inadequate disposal of human wastes may Heavy Use (inc. Use Area - USFS river bend upstream of Observation sensitive contribute bacteria and nutrients to the campgrounds) large exposed rock cliff Interview drinking water supply. Heavy use may contribute to streambank erosion causing turbidity. Fuel spills and emissions may also contribute to contamination. 2/14/2003 Page 6 of 11

10 25 Campgrounds/RV Cluster of several At junction of Fish Creek Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks campgrounds - and the mainstem Observation sensitive improperly managed septic systems and USFS Clackamas Interview wastewater disposal may impact drinking Carter Bridge, Lockaby, Armstrong, and Fish Creek water supply. Heavy usage along edge of campgrounds 26 Campgrounds/RV Roaring River At Roaring River junction Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks Campground - with the mainstem Observation sensitive improperly managed septic systems and USFS Clackamas Interview wastewater disposal may impact drinking water supply. Heavy usage along edge of 27 Campgrounds/RV Sunstrip Immediately NW of Pup Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks Campground - Creek junction w/ Observation sensitive improperly managed septic systems and USFS mainstem Clackamas Interview wastewater disposal may impact drinking water supply. Heavy usage along edge of 28 Above Ground Three Lynx - At Three Lynx Creek Estacada Field- Within Moderate Spills, leaks, or improper handling of stored Storage Tanks - USFS & PGE junction with mainstem Observation sensitive materials may impact the drinking water Excluding Water employee housing Clackamas Interview supply. Not identified in database & work complex query. May be listed under a different name. Fueling area evident, no secondary Housing - High Moderate Improper use, storage, and disposal of Density (> 1 household chemicals may impact the House/0.5 acres) drinking water supply. Stormwater run-off Not identified in database query. May be listed under a or infiltration may carry contaminants to different name. Fueling area drinking water supply. evident, no secondary 2/14/2003 Page 7 of 11

11 29 Wastewater Indian Henry On the 4620 road near the Estacada Field- Within Higher Improper management of wastewater, Treatment Campground - mainstem Clackamas Observation sensitive treatment chemicals, or equipment Plants/Collection USFS Interview maintenance materials may impact Wastewater collection and lift Stations drinking water supply. station routing to POTW at Timber Lake Job Corps Center. Campgrounds/RV Parks Moderate Leaks or spills of automotive fluids or improperly managed septic systems and wastewater disposal may impact drinking water supply. Heavy usage along edge of Wastewater collection and lift station routing to POTW at Timber Lake Job Corps Center. 2/14/2003 Page 8 of 11

12 30 Housing - High Timber Lake Job At Timber Lake, just Estacada Database (2) Within Moderate Improper use, storage, and disposal of Density (> 1 Corps Center - south of the 4630 road Field- sensitive household chemicals may impact the House/0.5 acres) USFS & other Observation drinking water supply. Stormwater run-off Large work station and Job Federal Govt. Interview or infiltration may carry contaminants to drinking water supply. Sewer Lines - Close Proximity to PWS Schools Moderate If not properly designed, installed, and maintained, sewer lines can impact drinking water, especially adjacent to a waterbody or within the 2-year time-of-travel zone for drinking water wells. Moderate Over-application or improper handling of cleaning products, pesticides or fertilizers used on the school grounds may impact drinking water. Vehicle maintenance wastes may contribute contaminants. Machine Shops Higher Spills, leaks, or improper handling of solvents, metals, and other chemicals or materials during transportation, use, Motor Pools storage and disposal may impact the drinking water supply. Moderate Spills, leaks, or improper handling of fuels and other chemicals from vehicle service and parking areas may impact the drinking water supply. Stormwater run-off or infiltration may carry contaminants to Large work station and Job Large work station and Job Large work station and Job Large work station and Job Wastewater Higher Improper management of wastewater, Treatment treatment chemicals, or equipment Plants/Collection maintenance materials may impact Large work station and Job Stations drinking water supply. Drinking Water Treatment Plants Moderate Treatment chemicals and equipment maintenance materials may impact groundwater or surface water source. Large work station and Job 2/14/2003 Page 9 of 11

13 30 Above Ground Timber Lake Job At Timber Lake, just Estacada Database (2) Within Moderate Spills, leaks, or improper handling of stored Storage Tanks - Corps Center - south of the 4630 road Field- sensitive materials may impact the drinking water Excluding Water USFS & other Observation supply. Large work station and Job Federal Govt. Interview Junk/Scrap/Salvage Higher Spills, leaks, or improper handling of Yards automotive chemicals, batteries, and other waste materials during storage and disposal may impact the drinking water Large work station and Job Pesticide/Fertilizer/ Higher Leaks, spills and improper handling of Petroleum Storage, pesticides, fertilizers and petroleum Handling, Mixing, & products may impact drinking water Large work station and Job Cleaning Areas Apartments and Lower Improper use, storage, and disposal of Condominiums household and facility maintenance chemicals may impact the drinking water supply. Stormwater run-off or infiltration may carry contaminants to water supply. Large work station and Job 31 Campgrounds/RV Alder Flat East side of mainstem, Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks Campground - just south of Timber Lake Observation sensitive improperly managed septic systems and USFS Interview wastewater disposal may impact drinking water supply. Heavy usage along edge of 2/14/2003 Page 10 of 11

14 32 Pesticide/Fertilizer/ Ripplebrook Immediately north of Estacada Database (2) Within Higher Leaks, spills and improper handling of Petroleum Storage, Ranger Station - North Fork junction with Field- sensitive pesticides, fertilizers and petroleum Handling, Mixing, & USFS Observation products may impact drinking water Cleaning Areas Interview Office Lower Spills, leaks, or improper handling of Buildings/Complexe chemicals and other materials stored and s used in maintenance or from parking areas may impact the drinking water supply. Above Ground Moderate Spills, leaks, or improper handling of stored Storage Tanks - materials may impact the drinking water Excluding Water supply. Other Heliport serving Mt. Hood NF sites Moderate The impacts of this potential contaminant source will be addressed during the enhanced inventory. 33 Campgrounds/RV Riverside Approx. 1 km north of Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks Campground - Collawash River junctin Observation sensitive improperly managed septic systems and USFS with mainstem Interview wastewater disposal may impact drinking water supply. Heavy usage along edge of 34 Campgrounds/RV Riverford At the junction of the Estacada Field- Within Moderate Leaks or spills of automotive fluids or Parks Campground - mainstem and the Observation sensitive improperly managed septic systems and USFS Collawash River Interview wastewater disposal may impact drinking water supply. Heavy usage along edge of 2/14/2003 Page 11 of 11