Tap WaterIndex

← New Hampshire

Tap water quality report

Gorham Water and Sewer Dept

EPA monitoring tested this supplier for 76 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

76
contaminants tested
16
detected
2,630
people served
7
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.

7
health-based violations
79
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1999-07-01 → 1999-07-31
TT Health-based Resolved 1999-07-01 → 1999-07-31
TT Health-based Resolved 1999-07-01 → 1999-07-31
TT Health-based Resolved 1999-07-01 → 1999-07-31
MCL Health-based Archived 1992-05-01 → 1992-05-31
MCL Health-based Archived 1992-05-01 → 1992-05-31
MCL Health-based Archived 1992-05-01 → 1992-05-31
Other Monitoring Resolved 2008-07-01
Other Monitoring Resolved 2008-07-01
MR Monitoring Resolved 1994-07-01 → 1994-09-30

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
227.86 µg/L 18%
of the EPA limit 1300 µg/L
worst single sample: 251.5 µg/L
25/28 SYR4 2014–2019
Chloroform
58.7 µg/L
No EPA limit set
worst single sample: 68 µg/L
23/26 SYR4 2014–2019
Bromodichloromethane
1.3 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
22/26 SYR4 2014–2019
Dichloroacetic Acid
18 µg/L
No EPA limit set
worst single sample: 27 µg/L
22/22 SYR4 2014–2019
Nitrate
246 µg/L 2.5%
of the EPA limit 10000 µg/L
worst single sample: 250 µg/L
22/24 SYR4 2014–2019
TTHM
59.85 µg/L 75%
of the EPA limit 80 µg/L
worst single sample: 69 µg/L
22/22 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
35.95 µg/L 60%
of the EPA limit 60 µg/L
worst single sample: 46 µg/L
22/22 SYR4 2014–2019
Trichloroacetic Acid
18.9 µg/L
No EPA limit set
worst single sample: 19 µg/L
22/22 SYR4 2014–2019
Lead
11.6 µg/L 77%
of the EPA limit 15 µg/L
worst single sample: 13.7 µg/L
15/20 SYR4 2015–2018
Nitrate-Nitrite
215 µg/L 2.2%
of the EPA limit 10000 µg/L
worst single sample: 260 µg/L
11/12 SYR4 2014–2019
Fluoride
333 µg/L 8.3%
of the EPA limit 4000 µg/L
worst single sample: 340 µg/L
8/8 SYR4 2014–2019
Barium
7.8 µg/L 0.4%
of the EPA limit 2000 µg/L
worst single sample: 8.1 µg/L
6/8 SYR4 2014–2019
Combined Uranium
1 µg/L 3.3%
of the EPA limit 30 µg/L
 1/2 SYR4 2015
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
 1/2 SYR4 2015
Monochloroacetic Acid
3 µg/L
No EPA limit set
 1/22 SYR4 2014–2019
Trichloroethylene
0.7000 µg/L 14%
of the EPA limit 5 µg/L
 1/9 SYR4 2014–2019
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JESSICA JACQUES

Frequently asked questions about Gorham Water and Sewer Dept

Is Gorham Water and Sewer Dept tap water safe to drink?

EPA monitoring detected 16 contaminants in Gorham Water and Sewer Dept'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 Gorham Water and Sewer Dept's water?

EPA monitoring detected Copper, Chloroform, Bromodichloromethane, Dichloroacetic Acid, Nitrate, and others. The full list with the level and data source for each is above.

How many people does Gorham Water and Sewer Dept serve?

Gorham Water and Sewer Dept reports serving 2,630 people in New Hampshire, per its EPA record.

Has Gorham Water and Sewer Dept had any water quality violations?

The EPA has 79 violations on file for Gorham Water and Sewer Dept, of which 7 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.