Nashua, New Hampshire Tap Water Quality

Free EPA data for 30 community water systems serving 123,851+ residents. Click any system to see violations, lead test results, and a safety grade.

PENNICHUCK WATER WORKS A

NASHUA, NH · 89,073 people · Surface Water ✓ No recent health violations

NASHUA, NH · 7,000 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 6,255 people · Surface Water Purchased ✓ No recent health violations

PENACOOK BOSCAWEN WATER PCT A

NASHUA, NH · 3,800 people · Groundwater ✓ No recent health violations

LITTLE POND ESTATES A

NASHUA, NH · 3,000 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 2,280 people · Surface Water ✓ No recent health violations

BELMONT WATER DEPT A

NASHUA, NH · 1,612 people · Groundwater ✓ No recent health violations

NASHUA, NH · 1,408 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 1,155 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 928 people · Groundwater ✓ No recent health violations

CABOT PRESERVE A

NASHUA, NH · 878 people · Groundwater Purchased ✓ No recent health violations

BROOK PARK ESTS A

NASHUA, NH · 875 people · Surface Water Purchased ✓ No recent health violations

BIRCH HILL EAST A

NASHUA, NH · 550 people · Groundwater Purchased ✓ No recent health violations

MAPLE HILL ACRES A

NASHUA, NH · 523 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 438 people · Groundwater ✓ No recent health violations

PIONEER COMMERCE PARK A

NASHUA, NH · 400 people · Groundwater ✓ No recent health violations

AVERY ESTATES A

NASHUA, NH · 380 people · Surface Water Purchased ✓ No recent health violations

NASHUA, NH · 350 people · Groundwater ✓ No recent health violations

OAKWOOD TERRACE A

NASHUA, NH · 307 people · Surface Water Purchased ✓ No recent health violations

MINISTERIAL/PARRISH HILLS A

NASHUA, NH · 298 people · Groundwater ✓ No recent health violations

SOUHEGAN WOODS A

NASHUA, NH · 293 people · Groundwater ✓ No recent health violations

GLEN RIDGE DEV A

NASHUA, NH · 253 people · Groundwater ✓ No recent health violations

NASHUA, NH · 250 people · Groundwater ✓ No recent health violations

BEAVER BROOK/MAPLE HILL FARM A

NASHUA, NH · 245 people · Groundwater ✓ No recent health violations

SPRINGWOOD HILLS A

NASHUA, NH · 225 people · Surface Water Purchased ✓ No recent health violations

SUNRISE ESTATES C

NASHUA, NH · 225 people · Groundwater 3 health violations in past 5 yrs

HUDSON MOBILE HOME ESTS A

NASHUA, NH · 220 people · Groundwater ✓ No recent health violations

GREAT BAY WATER SYSTEM A

NASHUA, NH · 218 people · Groundwater ✓ No recent health violations

SECOND NATURE ACADEMY D

NASHUA, NH · 212 people · Groundwater 9 health violations in past 5 yrs

WESCO UTILITIES A

NASHUA, NH · 200 people · Groundwater Purchased ✓ No recent health violations

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Nashua Drinking Water: Frequently Asked Questions

Is Nashua, New Hampshire tap water safe to drink?

Nashua has 30 community water systems regulated by the EPA. Each system is required to test regularly for hundreds of contaminants and publicly report any violations. Click any water system listed above to see its specific violation history, lead test results, and a plain-English safety grade.

How many water utilities serve Nashua, New Hampshire?

30 community water systems serve Nashua, New Hampshire, providing water to approximately 123,851 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.

Does Nashua tap water have lead?

Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.

What contaminants have been found in Nashua drinking water?

EPA violation records for Nashua water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.

How do I find out which water company serves my address in Nashua?

Enter your Nashua ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).