CITY OF Riverside
DEPARTMENT OF PUBLIC WORKS
ENVIRONMENTAL COMPLIANCE SECTION
CITY OF RIVERSIDE
City Resolutions 20295 & 21185
LOCAL LIMIT POLLUTANT DISCHARGE LIMITATIONS
CONCENTRATION BASED LIMITS
Effective 12/12/02
(Limits stated in milligrams per liter; mg/l, except pH)
POLLUTANT LIMIT POLLUTANT LIMIT
ARSENIC
0.18 SILVER
0.8, 5.0
1 BORON
5.2 SODIUM
250
CADMIUM
0.15 SULFATE
250
CHLORIDE
350
ZINC
6.7 CHROMIUM
0.68 COPPER
3.0 COD
8,000
CYANIDE
0.17 OIL/GREASE
250, 350
2 FLUORIDE
12.0 TSS
2,000
LEAD
1.2 TDS
2,500
MANGANESE
1.0 TOTAL HARDNESS
2,500
MERCURY
0.001
TOTAL NITROGEN
500
NICKEL
2.3 pH 5.0-11.5
1 The lower silver limit applies to all non-dom estic di scharges. The higher limit applies to all non-dom estic wastewater discharges of silver bearing wastewater th at is: 1) registered with the City as a photofinishing operation wastewater; 2) treated with approved pret reatment equipment capable of lower the silver concentration in the wastewater to below the higher lim it prior to mixing with other wastewater; and 3) permitted by the City authorizing the use of the higher limit.
2 For multiple o/g sampling in a 24 hr. calendar day, no single sample shall exceed 350 mg/L.
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