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Tri Regional Recommendation Page 3 of 24 Appendix A Classification System working under the di- 2729 and 2729.1 of Title 23,Division 3, rect supervision of one of the aforemen- Chapter 16 of the California Code of Regu- tioned professionals,provided that the lations). professional reviews the logs and assumes responsibility for the accuracy and com- pleteness of the logs. (See Section 2649 of 3.0 INVESTIGATION PROCESS Title 23,Division 3, Chapter 16 of the Cali- fornia Code of Regulations). After notification of the unauthorized release to the LIA agency,the lead agency is determined and the 7. All monitoring wells, extraction wells, etc investigation and reporting process initially begins and exploratory boreholes are to follow local with a Site Investigation Workplan to collect soil ordinances and the guidance and require- or soil and groundwater samples for analysis of ments of the DWR Bulletin 74-81 and 74- potential contaminants. All workplans and reports 90, California Well Standards. The text for prepared for investigation and remedial actions are Bulletin 74-81 and 74-90 may be to be submitted to both the LIA and the Regional downloaded and printed from the DWR Board. The lead agency will review the workplan website at dwr.water.ca.gov, and click on and send a letter to the discharger listing conditions the"publications"button. of approval, or requesting additional information prior to approval of the proposed workplan. 8. Printed or electronic reports are to be sub- mitted to both Regional Board and LIA Responsible parties seeking reimbursement fund- agencies. ing from the UST Cleanup Fund will also need to submit all workplans with regulatory approval let- 9. As of September 2001,dischargers are also ters to the UST Cleanup Fund for review and to submit analytical and site data electroni- pre-approval of costs. cally to the State Water Resources Control Board(SWRCB)at the same time as the Note: The lack of funding by the UST Cleanup hard copy reports. For more information, Fund does not relieve responsible parties from their please log on to the SWRCB web site at: responsibilityperform work required by the Re- http://geotracker.waterboards.ca.gov and click gional Board or a local enforcement agency pursu- on the information link to "AB 2886". (See ant to the Water Code or the Health& Safety Sections 2729 and 2729.1 of Title 23,Divi- Code. Amended time schedules may be considered sion 3, Chapter 16 of the California Code of to accommodate funding constraints. Regulations). 3.1 Site Investigation Workplan- §2654, §2723 10. As of January 2002, in addition to the labo- ratory data, site specific information is re- Once a release of petroleum hydrocarbon to soil quired to be submitted electronically for the has been detected, soil problems that cannot be following: 1)the latitude and longitude of resolved by a"scoop and run"cleanup may remain groundwater monitoring wells (including to be further identified and remediated. To suc- any other well or permanent sampling point cessfully achieve site cleanup, subsequent site in- designated as part of the site monitoring vestigations must define(to the non-detect limits) program) accurate to within one meter; 2) the lateral and vertical extent of impacted soil and the surveyed elevation,relative to mean sea groundwater. An initial Site Investigation Work- level, for any groundwater sampled, accurate plan is used to develop preliminary information to to within a tenth of a foot; 3)groundwater direct subsequent work. information, including depth to water, free product presence/thickness and well status; Upon approval of the workplan by the lead agency and 4)a site map in electronic format show- to define the extent of impacted soil and ground- ing property boundaries,buildings, and soil water,the discharger or their consultant must ob- and water sampling locations. (See Sections tain the necessary permits from the LIA, and then