Black Lake Grocery groundwater monitoring

We monitor groundwater for legacy  petroleum hydrocarbons at the Black Lake Grocery site. We provide groundwater data so that the Toxics Cleanup Program may evaluate the effectiveness of a treatment wall in remediating petroleum-contaminated groundwater before it enters Black Lake.

Black Lake Grocery is an active gas station and convenience store located on the northwest shore of Black Lake in Thurston County, Washington. Groundwater samples will be collected every 18 months from select wells for total petroleum hydrocarbons as gasoline (TPH-G), and benzene, toluene, ethylbenzene, and xylene (BTEX). The groundwater data will be used to evaluate the effectiveness of the installed treatment wall to remediate the petroleum-contaminated groundwater before it reaches Black Lake.

Use this database to learn more about this project, using the following site facility information:

Facility/ Site ID: 1420
Environmental Information Management database Study ID: PMART007

Publications

• Black Lake Grocery Groundwater Monitoring Results, June 2017: Data Summary Report reports findings.
• Black Lake Grocery Groundwater Monitoring Results, November 2013 and May 2014: Data Summary Report reports findings.
• Black Lake Grocery Groundwater Confirmational Monitoring, August 2011 to May 2012 reports findings.
• Quality Assurance Project Plan: Black Lake Grocery Groundwater Confirmational Monitoring describes the study plan in detail.