Kansas Drycleaning Program. kdheks.gov

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1 kdheks.gov Our Vision Our Healthy Vision Healthy Kansans Kansans living in safe and and sustainable environments environments

2 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

3 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

4 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

5 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

6 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 Ed. Jones Subslab 75,100 ND (75) 1, Dup 1(Ed. Jones) Subslab 84,800 ND (73) 1, Ed. Jones Indoor Air 3,400 ND (25) 2, Phone Store Subslab 85,500 ND (1,800) 2, 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 81,400 Lees D.C. Outside Subslab 113,000 ND (73) 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) Apartment Subslab 67,800 ND (3.6) Apartment Basement 48.8 ND (1.3) 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, , Apartment Basement 58 ND (1.6) Apartment Subslab 57 ND (3.6) Apartment Basement ND (10.4) ND (6.0) ND (8.1) RSK Levels, Indoor Air Commercial 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.

7 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

8 Strip Mall Sub-slab vent pipe System Blowers

9 Vapor Mitigation System Sub-slab system w/blower Crawl space system Silicone sealant Vapor Barrier Perforated PVC Pipe (under barrier)

10 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, Middle Triplex $3, South Trilplex $3, VMS Install - C ommercial property Cell Phone Store $2, Lee's Cleaners $2, Edward D. Jones $2, Electrical Hook-up at apartments $3, Electrical Hook-up for commercial $11, Total: $30,074.00

11 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.

12 Spic N Span Costs Vapor Mitigation System System: $8, 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

13 Spic N Span, Emporia, KS Vent Pipes

14 Spic N Span, Emporia, KS Vent Pipe Sealed Drain

15 Spic N Span, Emporia, KS Vac U-tube Vent Pipe

16 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 Phone (785) bjurgens@kdhe.state.ks.us Web Page:

17 kdheks.gov Our Vision Our Healthy Vision Healthy Kansans Kansans living in safe and and sustainable environments environments