Summary of water reuse criteria for select nonpotable applications from reuse programs from several states

Summary of water reuse criteria for select nonpotable applications from reuse programs from several states^a
Link to this table

Water Quality Parameter	Water Quality Limit – Food Crop Irrigation	Water Quality Limit – Restricted Access Irrigation	Water Quality Limit – Unrestricted Access Irrigation
Total Coliform	2.2 total coliform	23 total coliform/100mL	2.2 total coliform/100mL
Fecal Coliform	No Detect/100mL (some states prohibit usea)	200 fecal coliform/100mL	No Detect/100mL – 20 fecal coliform/100mL
E. coli	N/A	126 E. coli/100mL (only CO uses E. coli as a standard)	126 E. coli/100mL (only CO uses E. coli as a standard)
Turbidity	2 NTU	N/A	2 NTU – 3 NTU
TSS	N/A	20-30 mg/L	5 mg/L
BOD	10 mg/L BOD	20-30 mg/L	5-10 mg/L
CBOD	N/A	15-20 mg/L	5-20 mg/L
pH	N/A	N/A	N/A

^{Note: Many of these standards are based on water quality limits established for reclaimed water (treated wastewater), not stormwater specifically
a – Includes review of water reuse programs in AZ, CA, CO, FL, GA, HI, NV, NM, NC, OR, TX, UT, WA, and US EPA guidelines}