Groundwater Recharge Reuse DRAFT Regulation January 4 2007 Page 1 of 24 This draft reflects the California Department of Health Services CDHS Drinking Water Program s current thinking on the regulation of recharge of groundwater with recycled water Any informal comments you might have on this draft can be emailed to Jeff Stone at jstone1 dhs ca gov TITLE 22 CALIFORNIA CODE OF REGULATIONS 2 DIVISION 4 ENVIRONMENTAL HEALTH 2 CHAPTER 3 RECYCLING CRITERIA 2 ARTICLE 1 DEFINITIONS 2 Section 60301 080 Section 60301 120 Section 60301 190 Section 60301 370 Section 60301 380 Section 60301 390 Section 60301 610 Section 60301 670 Section 60301 680 Section 60301 690 Section 60301 705 Section 60301 770 Section 60301 780 Section 60301 810 Section 60301 840 Section 60301 850 Section 60301 860 Section 60301 870 24 hour Composite Sample 2 Aquifer 2 Diluent Water 2 Groundwater 2 Groundwater Basin 3 Groundwater Recharge Reuse Project 3 Mound 3 Project Sponsor 3 Public Water System 3 Recycled Water 4 Recycled Water Contribution RWC 4 RWQCB 4 Saturated Zone 4 Spreading Area 4 Subsurface Injection 4 Surface Spreading 5 Total Nitrogen 5 Total Organic Carbon TOC 5 ARTICLE 5 1 GROUNDWATER RECHARGE 6 Section 60320 Groundwater Recharge 6 Section 60320 General Requirements 6 Section 60320 010 Control of Pathogenic Microorganisms 8 Section 60320 020 Control of Nitrogen Compounds 8 Section 60320 030 Control of Regulated Chemicals and Physical Characteristics 10 Section 60320 035 Diluent Water Requirements 11 Section 60320 041 Recycled Water Contribution RWC Requirements 12 Section 60320 045 Total Organic Carbon Requirements 15 Section 60320 047 Additional Constituent Monitoring 17 Section 60320 065 Operation Optimization 18 Section 60320 070 Monitoring Between GRRP and Downgradient Drinking Water Supply Wells 18 Section 60320 090 Annual and Five Year Reporting 19 ARTICLE 7 Section 60323 ENGINEERING REPORT AND OPERATIONAL REQUIREMENTS 20 Engineering Report 20 ENDNOTES 21 ENDNOTE 1 ENDNOTE 2 ENDNOTE 3 ENDNOTE 4 ENDNOTE 5 ENDNOTE 6 ENDNOTE 7 New Regulated Contaminants 21 Analytical Methods for Unregulated Chemicals 21 Selected chemicals with CDHS advisory levels for possible analysis 21 Additional chemicals for analysis 22 Endocrine disrupting and other chemicals 22 Advanced oxidation treatment 23 Table summarizing text of Section 60320 020 Control of Nitrogen Compounds 24 Page 1 of 24 Groundwater Recharge Reuse DRAFT Regulation January 4 2007 Page 2 of 24 Title 22 CALIFORNIA CODE OF REGULATIONS DIVISION 4 ENVIRONMENTAL HEALTH CHAPTER 3 RECYCLING CRITERIA January 4 2007 ARTICLE 1 DEFINITIONS Section 60301 080 24 hour Composite Sample 24 hour composite sample means a combination of no fewer than eight individual samples obtained at equal time intervals during a 24 hour period such that the volume of each individual sample is proportional to the flow at the time of sampling NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 120 Aquifer Aquifer means a geologic formation group of formations or portion of a formation capable of yielding groundwater to wells or springs NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 190 Diluent Water Diluent water means water other than treated wastewater that actively or passively is used to dilute treated wastewater in a groundwater recharge reuse project NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 370 Groundwater Groundwater means water below the land surface in a saturated zone NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Page 2 of 24 Groundwater Recharge Reuse DRAFT Regulation Section 60301 380 January 4 2007 Page 3 of 24 Groundwater Basin Groundwater basin means an aquifer or a stacked series of aquifers with reasonably well defined boundaries NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 390 Groundwater Recharge Reuse Project Groundwater recharge reuse project GRRP means a project that uses recycled water and has been planned and is operated for the purpose of recharging a groundwater basin designated in the Water Quality Control Plan defined in Water Code section 13050 j for use as a source of domestic water supply and that has been identified as a GRRP by a RWQCB NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Sections 13520 13521 and 13050 j Water Code Section 60301 610 Mound Mound means a localized temporary elevation in a water table that builds up as a result of the localized downward percolation of waters that have been discharged to a spreading area NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 670 Project Sponsor Project sponsor means any agency that receives water recycling requirements for a GRRP from a RWQCB and is in whole or part responsible for the GRRP meeting the requirements of this Chapter NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code Section 60301 680 Public Water System Public Water System has the same meaning as defined in section 116275 h of the Health and Safety Code NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 116275 h Health and Safety Code Page 3 of 24 Groundwater Recharge Reuse DRAFT Regulation Section 60301 690 January 4 2007 Page 4 of 24 Recycled Water Recycled water has the same meaning as defined in subdivision n of section 13050 of the Water Code NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13050 Water Code Section 60301 705 Recycled Water Contribution RWC Recycled water contribution RWC means the quantity of recycled water applied at the GRRP spreading area or subsurface injection facility divided by the sum of the recycled water applied at the GRRP spreading area or subsurface injection facility and diluent water meeting the requirements of section 60320 035 NOTE Authority cited Section 100275 Health and Safety Code and Section 13521 Water Code Reference Section 13520 Water Code
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