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Environmental Health & Safety
Hazardous Waste Management Manual - Appendices

SEWER WASTEWATER DISPOSAL LIMITS 
New Mexico State University 82211 

ATTACHMENT III*

Limits on Wastewater Strength*

Total Metal,    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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