Tap WaterIndex

← New Hampshire

Tap water quality report

Berlin Water Works

EPA monitoring tested this supplier for 106 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
15
detected
9,575
people served
4
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Surface water
Ownership
Local government
Counties served
Coos

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
6
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-11-01 → 2011-11-30
MCL Health-based Resolved 2011-11-01 → 2011-11-30
MCL Health-based Resolved 2011-11-01 → 2011-11-30
MCL Health-based Resolved 2011-11-01 → 2011-11-30
MR Monitoring Resolved 2021-12-30
MR Monitoring Resolved 2021-12-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
837.495 µg/L 64%
of the EPA limit 1300 µg/L
worst single sample: 1960 µg/L
74/83 SYR4 2014–2019
Chloroform
63 µg/L
No EPA limit set
worst single sample: 77 µg/L
42/49 SYR4 2014–2019
TTHM
65.4 µg/L 82%
of the EPA limit 80 µg/L
worst single sample: 79 µg/L
40/41 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
42 µg/L 70%
of the EPA limit 60 µg/L
worst single sample: 47 µg/L
40/40 SYR4 2014–2019
Trichloroacetic Acid
25.2 µg/L
No EPA limit set
worst single sample: 27 µg/L
39/40 SYR4 2014–2019
Bromodichloromethane
2.44 µg/L
No EPA limit set
worst single sample: 3.2 µg/L
37/49 SYR4 2014–2019
Dichloroacetic Acid
19 µg/L
No EPA limit set
 37/40 SYR4 2014–2019
Lead
11.36 µg/L 76%
of the EPA limit 15 µg/L
worst single sample: 41.9 µg/L
33/74 SYR4 2015–2019
Nitrate
257.5 µg/L 2.6%
of the EPA limit 10000 µg/L
worst single sample: 270 µg/L
26/28 SYR4 2014–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2024
Nitrate-Nitrite
240 µg/L 2.4%
of the EPA limit 10000 µg/L
worst single sample: 270 µg/L
13/13 SYR4 2014–2019
Dibromochloromethane
1.01 µg/L
No EPA limit set
worst single sample: 1.1 µg/L
10/49 SYR4 2014–2019
Barium
12.4 µg/L 0.6%
of the EPA limit 2000 µg/L
worst single sample: 12.6 µg/L
6/9 SYR4 2014–2019
Chromium
1.1 µg/L 1.1%
of the EPA limit 100 µg/L
 1/9 SYR4 2014–2019
Combined Radium (-226 And -228)
1.3 pCi/L 26%
of the EPA limit 5 pCi/L
 1/6 SYR4 2014–2019
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CJ VALLIERE

Frequently asked questions about Berlin Water Works

Is Berlin Water Works tap water safe to drink?

EPA monitoring detected 15 contaminants in Berlin Water Works's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Berlin Water Works's water?

EPA monitoring detected Copper, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Berlin Water Works serve?

Berlin Water Works reports serving 9,575 people in New Hampshire, per its EPA record.

Has Berlin Water Works had any water quality violations?

The EPA has 6 violations on file for Berlin Water Works, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.