SITE INFORMATION AND CORRESPONDENCE FILE 2

Home Browse Search

MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-010 3 CONOCOPHILLIPS SAN JOAQUIN COUNTY (d)(1) Civil liability may be administratively imposed by a regional board in accordance with Article 2.5 (commencing with Section 13323) of Chapter 5 for a violation of subdivision (c) in an amount which shall not exceed five thousand dollars ($5,000) for each day in which the violation occurs. It is Hereby Ordered that the Discharger shall comply with the following Monitoring and Reporting Program requirements: GENERAL REQUIREMENTS 1. All samples should be representative of the volume and nature of the discharge or matrix of material sampled. The time, date, and location of each grab sample shall be recorded on the legal chain of custody form. GROUNDWATER MONITORING 2. As shown on Figure 4, there are 26 groundwater monitoring wells (MW-1 through MW-26), three vapor extraction wells (VE-1 through VE-3), and four injection wells (SP-1, SP-2, SP-4, and SP-5) at the site. The groundwater monitoring and reporting program (MRP) for the groundwater monitoring wells and any groundwater monitoring wells installed subsequent to the issuance of this MRP, shall follow the schedule below. Groundwater monitoring wells with free-phase petroleum product or visible sheen shall be monitored, at a minimum, for product thickness and depth-to-water (DTW). Sample collection and analysis shall follow standard Environmental Protection Agency (EPA) protocol. Currently there are two background wells (MW-8 and MW-10), ten treatment zone wells (MW-1 through MW-4, MW-20 through MW-26) three transition zone wells (MW-5, MW-7, and MW-21), and three compliance zone wells (MW-6, MW-9, MW-15). The groundwater monitoring wells shall be sampled according to the schedule in Table 1 and the samples analyzed by the methods in Table 2, as follows: Table 1: Sampling Frequency and Constituent Suite Well Number Frequency' Constituent Suite(s)3 Monitoring Objective MW-6, MW-9, MW-15 Semi-annual' Suite A and B Compliance° MWA through MW-4, MW-20 through Monthly, Suites A and B Treatment Zones MW-26 MW-5, MW-7, and Monthly Suites A and B Transition Zones MW-21 MW-8 and MW-10 Semi-annual' Suite A and B Background' ' Well numbers as shown on Figures 4 . 2 i.e., weekly, monthly, quarterly, annually, other. 3 Constituent suite components listed in Table 2. ° Wells used to determine compliance with water groundwater limitations. s Wells sampled to evaluate in-situ bioremediation progress inside the treatment zone.