EHS&RM – Hazardous Waste Management Manual, App S, Discharge Limits

SEWER WASTEWATER DISPOSAL LIMITS
New Mexico State University 82211

ATTACHMENT III*

Limits on

Wastewater Strength*

Total Metals

May Not Exceed Any One Day (mg/L)

Aluminum

 (Al)

 8.84

Arsenic

 (As)

 0.06

Cadmium

 (Cd)

 0.28

Chromium

 (Cr)

 0.32

Copper

 (CU)

 1.06

Lead

 (Pb)

 1.47

Mercury

 (Hg)

 0.0002

Nickel

 (N)

0.58

Silver

 (Ag)

 0.50

Zinc

 (Zn)

 20.60

Total Cyanide mg/L

 (Cn)

 0.15

Other Parameters

May Not Exceed at Any Time

Maximum

 pH

 12.5

Minimum

 pH

 5.0

Maximum Temperature,

 C

 60.0

*New Local Limits as Approved by the City of Las Cruces Council on July 17,2000.

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