COMPLIANCE INFO_PRE 2019 - Laserfiche WebLink

Home Browse Search

PUBLIC NOTICE PG&E McDonald Island Compressor Station Zuckerman Road, Stockton, CA 95206 State of California Edmund G.Brown Jr. Public Notice: The California Regional Water Quality Control Board, Central Valley Governor Region (Central Valley Water Board) invites public comment on a request for regulatory closure, made on behalf of Pacific Gas and Electric (PG&E) for the McDonald Island Compressor Station, located in San Joaquin County, CA (Site). This Public Notice fact sheet provides general information on the Site. A map showing the location of the Site is attached (Figure 1). I California Environmental PUBLIC COMMENT PERIOD: 28 March — 28 April 2017 Protection Agency Matthew Rodriquez CASE SUMMARY: Secretary for Environmental The Site is located on McDonald Island in the Sacramento-San Joaquin River Delta, Protection in San Joaquin County, California, approximately 8 miles west of Stockton, California. The facility was formerly a natural gas production field but was converted to a belowground natural gas storage facility in the 1960s and is still active. The Site /2�11.� measures approximately 500 feet by 350 feet and is surrounded by agricultural NVater Boards fields. State Water Resources During routine site operations, petroleum liquids spilled to the ground in the vicinity Control Board of a former aboveground storage tank, located in the central area of the Site. This Felicia Marcus, Chair aboveground storage tank was removed in December 2009 and there are no current Regional Water Quality leaks or active contamination sources at the Site. As a result of this spill, the Site soil Control Board, and groundwater was contaminated. Central Valley Region Karl Longley ScD,P.E., Site investigation activities and remedial actions have been performed at this Site Chair since 2009. This included soil boring studies and groundwater monitoring and sampling. As a result, the horizontal and vertical extent of the contamination is well Public Notice — defined. Additionally, two instances of soil excavations were able to remove the soil Conditional No contamination to the greatest extent practicable. Further Action Groundwater is located at 12 to 13 feet below ground surface and flows towards the PG&E McDonald north. The current lateral extent of the groundwater plume measures approximately Island 75 feet by 50 feet but concentrations are very low and do not pose a significant risk Compressor to human health or the environment. The residual petroleum constituents remaining Station in both the soil and groundwater will continue to naturally break down. The Central Valley Water Board has approved PG&E's request for a `conditional no further action' at the Site. This request is now open to the public for comments and 2111 concerns for a period of 30 days. Page 1 of 2