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Municipal and industrial wastewater is regulated in California by the local Water Quality Control Boards. The WQCB is the lead state agency that enforces the Clean Water Acts National Pollutant Discharge Elimination System (NPDES) regulations. Each facility is issued a “discharge permit” that required the facility to control the concentrations of the listed constituents on their permit. Chemical, physical, and bacterial parameters are analyzed to determine if it is toxic for fish, water insects, and water plants and algae. Two types of tests are commonly used for this determination, the acute and chronic toxicity bioassay.

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Analysis Method Unit MDL RL
Total Suspended Solids  SM 2540D  mg/l  2.0  6.0 
Total Kjeldahl Nitrogen  EPA 351.2  mg/l  0.09  0.2 
BOD - 5 Day  SM 5210B  mg/l  3.0  3.0 
Total Kjeldahl Nitrogen  EPA 351.2  mg/l  0.09  0.2 
Total Kjeldahl Nitrogen  EPA 351.2  mg/l  0.09  0.2 
Total Suspended Solids  SM 2540D  mg/l  2.0  6.0 
Mercury  EPA 1631E  ng/l  0.22  0.5 
Methyl Mercury as Mercury  EPA 1630**  ng/l  0.017  0.05 
1,1,1,2-Tetrachloroethane  EPA 624.1 Sub  ug/l  0.11  0.5 
1,1,1-Trichloroethane (1,1,1-TCA)  EPA 624.1 Sub  ug/l  0.11  0.5 
1,1,2,2-Tetrachloroethane  EPA 624.1 Sub  ug/l  0.14  0.5 
1,1,2-Trichloroethane (1,1,2-TCA)  EPA 624.1 Sub  ug/l  0.12  0.5 
1,1-Dichloroethane (1,1-DCA)  EPA 624.1 Sub  ug/l  0.13  0.5 
1,1-Dichloroethene (1,1-DCE)  EPA 624.1 Sub  ug/l  0.11  0.5 
1,2,3-Trichloropropane  EPA 624.1 Sub  ug/l  0.19  0.5 
1,2-Dibromo-3-chloropropane (DBCP)  EPA 624.1 Sub  ug/l  0.22  0.5 
1,2-Dibromoethane (EDB)  EPA 624.1 Sub  ug/l  0.1  0.5 
1,2-Dichlorobenzene (o-DCB)  EPA 624.1 Sub  ug/l  0.1  0.5 
1,2-Dichlorobenzene-d4  EPA 624.1 Sub  ug/l     
1,2-Dichloroethane (1,2-DCA)  EPA 624.1 Sub  ug/l  0.15  0.5 
1,2-Dichloropropane  EPA 624.1 Sub  ug/l  0.11  0.5 
1,3-Dichlorobenzene (m-DCB)  EPA 624.1 Sub  ug/l  0.1  0.5 
1,3-Dichloropropane  EPA 624.1 Sub  ug/l  0.13  0.5 
1,3-Dichloropropene (total)  EPA 624.1 Sub  ug/l  0.15  0.5 
1,4-Dichlorobenzene (p-DCB)  EPA 624.1 Sub  ug/l  0.09  0.5 
2-Hexanone  EPA 624.1 Sub  ug/l  0.58  2.0 
4-Methyl-2-pentanone (MIBK)  EPA 624.1 Sub  ug/l  0.27  1.0 
Acetone  EPA 624.1 Sub  ug/l  2.53  5.0 
Benzene  EPA 624.1 Sub  ug/l  0.1  0.5 
Bromochloromethane  EPA 624.1 Sub  ug/l  0.12  0.5 
Bromodichloromethane  EPA 624.1 Sub  ug/l  0.11  0.5 
Bromoform  EPA 624.1 Sub  ug/l  0.15  0.5 
Bromomethane  EPA 624.1 Sub  ug/l  0.11  1.0 
Carbon disulfide  EPA 624.1 Sub  ug/l  0.32  0.5 
Carbon tetrachloride  EPA 624.1 Sub  ug/l  0.11  0.5 
Chlorobenzene  EPA 624.1 Sub  ug/l  0.09  0.5 
Chloroethane  EPA 624.1 Sub  ug/l  0.09  0.5 
Chloroform  EPA 624.1 Sub  ug/l  0.27  0.5 
Chloromethane  EPA 624.1 Sub  ug/l  0.2  0.5 
cis-1,2-Dichloroethene (c-1,2-DCE)  EPA 624.1 Sub  ug/l  0.11  0.5 
cis-1,3-Dichloropropene  EPA 624.1 Sub  ug/l  0.11  0.5 
Dibromochloromethane  EPA 624.1 Sub  ug/l  0.11  0.5 
Dibromomethane  EPA 624.1 Sub  ug/l  0.11  0.5 
Dichlorodifluoromethane (CFC 12)  EPA 624.1 Sub  ug/l  0.21  0.5 
Dichloromethane (Methylene Chloride)  EPA 624.1 Sub  ug/l  0.22  0.5 
Ethylbenzene  EPA 624.1 Sub  ug/l  0.09  0.5 
m,p-Xylene  EPA 624.1 Sub  ug/l  0.18  1.0 
o-Xylene  EPA 624.1 Sub  ug/l  0.1  0.5 
Styrene  EPA 624.1 Sub  ug/l  0.1  0.5 
tert-Butyl Alcohol (TBA)  EPA 624.1 Sub  ug/l  0.77  15.0 
Tetrachloroethene (PCE)  EPA 624.1 Sub  ug/l  0.11  0.5 
Toluene  EPA 624.1 Sub  ug/l  0.1  0.5 
trans-1,2-Dichloroethene (t-1,2-DCE)  EPA 624.1 Sub  ug/l  0.15  0.5 
trans-1,3-Dichloropropene  EPA 624.1 Sub  ug/l  0.15  0.5 
Trichloroethene (TCE)  EPA 624.1 Sub  ug/l  0.13  0.5 
Trichlorofluoromethane (Freon 11)  EPA 624.1 Sub  ug/l  0.1  0.5 
Vinyl chloride  EPA 624.1 Sub  ug/l  0.14  0.5 
Xylenes (total)  EPA 624.1 Sub  ug/l  0.18  1.0