Appendix 75-C - Individual Onsite Water Supply Systems – Statewide Water Quality Standards

APPENDIX 75-C
INDIVIDUAL ONSITE WATER SUPPLY SYSTEMS – STATEWIDE WATER QUALITY STANDARDS

TABLE 1

The standards in Table 1 shall not be exceeded:

 

Contaminant
Standard (1)
Coliform Bacteria
Any positive result (2)
Lead
0.015 mg/l
Nitrates
10 mg/l as Nitrogen
Nitrites
1 mg/l as Nitrogen
Turbidity
5 NTU (3)
Arsenic
0.010 mg/l

(1) mg/l means milligrams per liter (parts per million).

(2) A “positive” result means that coliform bacteria are present; a “negative” result means that coliform bacteria are absent or are not present.

(3) NTU means Nephelometric Turbidity Units.

TABLE 2
Exceeding the following standards may necessitate (1) installation and maintenance of water treatment devices, or (2) limited daily consumption of water by certain persons:

 

Contaminant
Standard (1)
Iron
0.3 mg/l (2)
Manganese
0.3 mg/l (2)
Iron plus manganese
0.5 mg/l (2)
Hardness
150 mg/l as CaCO3 (2)
Alkalinity
100 mg/l as CaCO3 (2)
pH
6.5 – 8.5 (3)
Sodium
No designated limit (4)

(1) mg/l means milligrams per liter (parts per million).

(2) If standards are exceeded options for treatment should be evaluated.

(3) If pH values are outside of this range (i.e., less than 6.5 or greater than 8.5) options for treatment should be evaluated.

(4) Water containing more than 20 mg/l of sodium should not be used for drinking by people on severely restricted sodium diets. Water containing more than 270 mg/l of sodium should not be used for drinking by people on moderately restricted sodium diets.

Effective Date: 
Wednesday, March 16, 2016
Statutory Authority: 
Publilc Health Law, section 201(l)(1)