Nashua

Hillsborough County, New Hampshire

9 Critical

Water Quality Score

9/100

Grade

Water Systems

Population

91,322

Key Contaminants

PFOS (Perfluorooctane Sulfonate) Violation

0.0051 / 0.004 μg/L

0 μg/L MCL: 0.004 μg/L

Benzene

4.3628 / 5 μg/L

0 μg/L MCL: 5 μg/L

Tetrachloroethylene (PCE)

4.232 / 5 μg/L

0 μg/L MCL: 5 μg/L

Nitrate

8.0147 / 10 mg/L

0 mg/L MCL: 10 mg/L

Mercury

1.2671 / 2 μg/L

0 μg/L MCL: 2 μg/L

Nitrite

0.5399 / 1 mg/L

0 mg/L MCL: 1 mg/L

Lead

6.8184 / 15 μg/L

0 μg/L MCL: 15 μg/L

PFAS (Per- and Polyfluoroalkyl Substances)

0.0018 / 0.004 μg/L

0 μg/L MCL: 0.004 μg/L

Water quality can vary by neighborhood in Nashua.