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| Title | Lakewood Plaza Cleaners, May and September 2006 Groundwater Monitoring Results | |||
| Month-Year Published | March 2007 | |||
| Online Availability |
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| Short Description |
Annual groundwater monitoring at the former Lakewood Plaza Cleaners site was conducted during May and September 2006. Four wells had PCE concentrations that exceeded the MTCA cleanup level of 5.0 ug/L: monitoring wells MW-20B (216 and 518 ug/L), MW-16A (29 and 124 ug/L), LPMW-2 (9.9 ug/L), and municipal well H1 (7.3 ug/L). Well MW-20B had a TCE concentration (5.6 ug/L) that exceeded the MTCA cleanup level of 5.0 ug/L. Cis-1,2-DCE was detected in MW-20B (6.6 and 11 ug/L) and MW-16A (4.6 and 0.48J ug/L); the federal MCL for cis-1,2-DCE is 70 ug/L. PCE concentrations in wells MW-20B and MW-16 appear to be rising. (Also see abstract below) | |||
| Publication Number | 07-03-013 | |||
| Author(s) | Marti, P., and T. Roberts | |||
| Print Availability | ||||
| Number of pages | 19 pp. | |||
| Keywords | groundwater, Model Toxic Control Act, monitoring, toxic, wells | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| Lakewood Plaza Cleaners, June and November 2005 Groundwater Monitoring Results | part of a series | |||
| Lakewood Plaza Cleaners, June and October 2007 Groundwater Monitoring Results | part of a series | |||
| Abstract | Long Description |
This progress report is one in a series describing results of long-term groundwater sampling at the former Lakewood Plaza Cleaners site south of Tacoma. Results of volatile organics in samples collected from seven monitoring wells and one municipal well in May 2006, and four monitoring wells and one municipal well in September 2006, are included.
Most concentrations remain within the range of those reported in previous samplings conducted since 1991. However, PCE concentrations in wells MW-20B and MW-16A appear to be rising. PCE concentrations in well MW-16A during the May 2006 sampling had increased to the highest levels detected in the well since the initial sampling in 1985 (110 ug/L). PCE concentrations in municipal well H1 remain near the MTCA cleanup level. |
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