OCWD Management Area
Table 3-2: Nitrate (as N) Water Quality Objective for Lower Santa Ana River Basin Management Zones
Groundwater Management Zone
2018 Ambient Quality*
Water Quality Objective
Orange
3.4 mg/L
3.0 mg/L
Irvine
5.9 mg/L
6.37 mg/L
*Water Systems Consulting, 2020.
Figure 3-18: Nitrate (as N) Levels in Groundwater Production Wells, 5-year average, WY2016-17 to 2020-21
Per- and polyfluoroalkyl substances (PFAS)
Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of manmade chemicals that includes perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). PFAS compounds have been commonly used in many products including, among many others, stain- and water-repellent fabrics, nonstick products (e.g., Teflon), polishes, waxes, paints, cleaning
BASIN 8-1 ALTERNATIVE 2022 UPDATE
Management Area Description 3-23
Appendix F - 103
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