kdheks.gov Our Vision Our Healthy Vision Healthy Kansans Kansans living in safe and and sustainable environments environments
Vapor Intrusion Mitigation Dry Cleaning Bob Jurgens, Unit Manager Dry Cleaning Department of Health and Environment 2008 SCRD Annual Meeting New Orleans, Louisiana October 21-23, 2008
Vapor Intrusion General Approach 1) Soil and groundwater sampling Part of standard site/plume assessment 2) Indoor air sampling If significant soil and/or groundwater contamination 3) Sub slab soil vapor sampling When we delineate the aerial extent 4) Vapor mitigation system installation
Indoor Air Sampling Occupied Areas Residential higher occupancy time Commercial/retail stores and office buildings standard work day Storage Areas (basement, warehouse) Our Vision Healthy Kansans living in safe and sustainable envi ronments
Sub slab sampling conducted Soil or groundwater lab data indicates elevated potential for vapor intrusion (VI) Primary concern is soil source areas Our Vision Healthy Kansans living in safe and sustainable envi ronments
Strip Mall Adjacent Triplexes Table 1 - La b Analytical Results Lee's Drycleaners, Wichita, KS Sample Sample PCE Cis-1,2-DCE TCE Identification Type ug/m 3 ug/m 3 ug/m 3 1104 Ed. Jones Subslab 75,100 ND (75) 1,460 1030 Dup 1(Ed. Jones) Subslab 84,800 ND (73) 1,790 1104 Ed. Jones Indoor Air 3,400 ND (25) 2,090 1108 Phone Store Subslab 85,500 ND (1,800) 2,670 1108 Phone Store Indoor Air 2340* ND (1.1)* 738* Storage East Subslab 56,300 ND (73) 699 Storage West Subslab 3,840 ND (73) 557 Lees D.C. Inside Subslab 2,760,000 324,000 81,400 Lees D.C. Outside Subslab 113,000 ND (73) 378 1108 Hallway Subslab 125,000 ND (1,800) 2,750 Ambient Outdoor Air 9.5 ND (1.3) ND (1.7) Cricket Store Indoor Air 617 ND (2.5) 600 Liquor Store Indoor Air 6,660 ND (1.4) 822 3156 Apartment Subslab 67,800 ND (3.6) 32.2 3156 Apartment Basement 48.8 ND (1.3) 5 3158 Apartment Subslab 40,100 ND (1,800) ND (2,500) Dup 2 (3158 Apartment) Subslab 42,300 ND (1,800) ND (2,500) 3158 Apartment Crawlspace 8,000 85.8 22,200 3158 Apartment Basement 58 ND (1.6) 4.7 1234 Apartment Subslab 57 ND (3.6) 12 1234 Apartment Basement ND (10.4) ND (6.0) ND (8.1) RSK Levels, Indoor Air Commercial 70.5 51.1 23.8 Our RSK Vision Levels, Indoor Healthy Air Kansans Residential living in safe 42 and sustainable 15.6 environments 14.2 * Sample picked up with 0"Hg the next day. W as supposed to be an 8hr sample.
Lee s Cleaners Vapor Mitigation System Emergency response due to high levels Strip Mall: Sub-slab system w/blower 3-inch PVC screened interval beneath concrete floor w/blower Electrical Dry Cleaner s meter Adjacent Residential - Crawl space and sub-slab system Crawl space 3-inch PVC perforated pipe w/blower 12 mil 3-layer cross-woven vapor barrier silicone-sealed to walls. Basement floor: 3-inch PVC screen w/blower Electrical Residents meters
Strip Mall Sub-slab vent pipe System Blowers
Vapor Mitigation System Sub-slab system w/blower Crawl space system Silicone sealant Vapor Barrier Perforated PVC Pipe (under barrier)
Lee s Cleaner s Vapor Mitigation System Costs Strip Mall 3 sub slab depressurization points 3 Resident. Triplexes Each with 1 basement depressurization point and 1 crawl space (slotted pipe w/sealed 12 mill overlay) Vapor Mitigation System (VMS) - install at apartments Cost North Triplex $3,069.00 Middle Triplex $3,069.00 South Trilplex $3,069.00 VMS Install - C ommercial property Cell Phone Store $2,002.00 Lee's Cleaners $2,002.00 Edward D. Jones $2,002.00 Electrical Hook-up at apartments $3,509.00 Electrical Hook-up for commercial $11,352.00 Total: $30,074.00
Spic N Span, Emporia Vapor Mitigation System Quilting shop, craft/sewing store, HVAC shop/warehouse and residential (upper floor) Three floors Basement, Main floor and Residential apartments.
Spic N Span Costs Vapor Mitigation System System: $8,086.10 3 Sub-slab depressurization systems 3-inch PVC w/blower screened interval beneath concrete floor One in basement extending up through two floors Solid concrete basement ceiling so pipe routed up stairwell Two in the first floor - no basement Electric Existing occupant s meters
Spic N Span, Emporia, KS Vent Pipes
Spic N Span, Emporia, KS Vent Pipe Sealed Drain
Spic N Span, Emporia, KS Vac U-tube Vent Pipe
Contact Info Bob Jurgens, Unit Manager Landfill/Dry Cleaner Remediation s Bureau of Environmental Remediation Dept. of Health & Environment 1000 SW Jackson, Ste. 410 Topeka, KS 66612-1367 Phone (785) 291-3150 E-mail: bjurgens@kdhe.state.ks.us Web Page: www.kdheks.gov/dryclean
kdheks.gov Our Vision Our Healthy Vision Healthy Kansans Kansans living in safe and and sustainable environments environments