Laserfiche WebLink
E MACHO G. BROM: Jg. <br />GOVERNOE <br />Water Boards <br />MATTHEW FiODNICLIEF. <br />SECRUARy EOn <br />fh.noNuErrt, PPOTECItOt. <br />CALIFORNIA <br />Central Valley Regional Water Quality Control Board <br />11 April 2017 <br />Bob Long <br />Sierra Lumber Manufacturing Inc. <br />P.O. Box 6216 <br />Stockton, CA 95202 <br />WORK PLAN RESPONSE, SIERRA LUMBER CASE #2, 375 HAZELTON AVENUE, STOCKTON, SAN <br />JOAQUIN COUNTY, CASE# 391168 <br />Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff reviewed the <br />Monitoring Well Installation Work Plan — March 2017 (Work Plan) dated 22 March 2017, submitted on your <br />behalf by Advanced GeoEnvironmental Inc. (AGE) for the Sierra Lumber property (Case #2) located at 375 <br />Hazelton Avenue in Stockton (Site). <br />In the Work Plan, AGE proposes installing deep monitoring well MW-21 in the vicinity of previous borings <br />B11 and B12. This proposed well will be screened from 120 to 130 feet below ground surface (bgs). The <br />purpose of this well is to assess petroleum hydrocarbon impact to deep groundwater observed in samples <br />collected from borings B11 and B12 in 2016, and to provide continuing data in order to establish trends <br />and evaluate the stability of the plume. AGE proposes installing the well using hollow stem augers, with <br />soil sampling, for lithologic logging purposes only, every five (5) feet from 100 feet bgs to total depth. <br />Central Valley Water Board staff concurs with the scope of work as proposed in the Work Plan with the <br />following comments: <br />By 7 July 2017, please submit a Well Installation Report, detailing the installation activities, <br />In order to allow the cement sanitary seal to properly cure, please wait a minimum of 72 hour after <br />installation before developing the well. <br />Subsequent to installation and development, please incorporate this well into the groundwater <br />monitoring and sampling program at the Site. Please sample this well during second quarter 2017, <br />and include the data in the Groundwater Monitoring Report (GMR) due 30 July 2017. <br />If you have any questions or concerns regarding comments in this letter please call me at (916) 464-4615 <br />or contact me by email at aian.buehler@waterboards.ca.gov. <br />-ULA <br />Alan M. Buehler, P.G. <br />Engineering Geologist <br />cc: Sriram lyer, State Water Resources Control Board, UST Cleanup Fund, Sacramento <br />Nuel Henderson, San Joaquin County Environmental Health Department, Stockton <br />Tim Cuellar, Advance GeoEnvironmental Inc., Stockton <br />KARL E LoncLEy ScD, P.E., CHAIR I PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OF,ICER <br />11020 Sun Center Drive 11200. Rancho Cordova, CA 95670 I www.waterboares.ca.govicentralvalley <br />Co. RECFCLEO PAPER