Section 60320.218 - Total Organic Carbon Requirements(a) For each subsurface application GRRP used for replenishing a groundwater basin, the GRRP's project sponsor shall monitor the applied recycled municipal wastewater for TOC as follows: (1) Prior to replenishment, at least one 24-hour composite sample each week.(2) Grab samples may be used in lieu of the 24-hour composite samples required in paragraph (1) if the GRRP demonstrates that a grab sample is representative of the water quality throughout a 24-hour period.(b) Analytical results of the TOC monitoring performed pursuant to subsection (a) shall not exceed 0.5 mg/L based on: (1) the 20-week running average of all TOC results; and(2) the average of the last four TOC results.(c) If the GRRP exceeds the limit in subsection (b)(1) based on a 20-week running average, a project sponsor shall take the following actions upon being notified of the results: (1) immediately suspend the addition of recycled municipal wastewater until at least two consecutive results, three days apart, are less than the limit;(2) notify the Department and Regional Board within seven days of suspension; and(3) within 60 days, submit a report to the Department and Regional Board describing the reasons for the exceedance and the corrective actions to avoid future exceedances. At a minimum, the corrective actions shall include a reduction of RWC sufficient to comply with the limit.(d) If the GRRP exceeds the limit in subsection (b)(2) based on the average of the last four results, a project sponsor shall, within 60 days of being notified of the results, submit a report to the Department and Regional Board describing the reasons for the exceedance and the corrective actions taken to avoid future exceedances.(e) To use one or more wastewater chemicals in lieu of TOC, a project sponsor shall obtain approval from the Department. At a minimum, the chemical(s) used in lieu of TOC shall: (1) be quantifiable in the wastewater, recycled municipal wastewater, groundwater, and throughout the treatment processes; and(2) have identifiable treatment performance standards as protective of public health as the TOC standards in this Article.Cal. Code Regs. Tit. 22, § 60320.218
1. New section filed 6-18-2014 as an emergency; operative 6-18-2014. Submitted to OAL for filing and printing only. This adoption is not subject to OAL review and shall remain in effect until revised by the Department of Public Health pursuant to Water Code section 13562.5 (Register 2014, No. 25). Note: Authority cited: Sections 13521, 13540, 13562 and 13562.5, Water Code; and Sections 131052 and 131200, Health and Safety Code. Reference: Sections 13520, 13522, 13522.5, 13523, 13523.1, 13524, 13540, 13560, 13561 and 13562.5, Water Code.
1. New section filed 6-18-2014 as an emergency; operative 6/18/2014. Submitted to OAL for filing and printing only. This adoption is not subject to OAL review and shall remain in effect until revised by the Department of Public Health pursuant to Water Code section 13562.5 (Register 2014, No. 25).