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Tap water quality report

Lyme Water

EPA monitoring tested this supplier for 69 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
11
detected
283
people served
67
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Private
Counties served
Grafton

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.

67
health-based violations
95
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2012-01-01 → 2012-01-31
MCL Health-based Resolved 2012-01-01 → 2012-01-31
MCL Health-based Resolved 2012-01-01 → 2012-01-31
MCL Health-based Resolved 2012-01-01 → 2012-01-31
MCL Health-based Resolved 2011-09-01 → 2011-09-30
MCL Health-based Resolved 2011-09-01 → 2011-09-30

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
158.8 µg/L 12%
of the EPA limit 1300 µg/L
worst single sample: 172 µg/L
12/16 SYR4 2016–2019
Nitrate
3000 µg/L 30%
of the EPA limit 10000 µg/L
 10/36 SYR4 2014–2019
Arsenic
11.75 µg/L 118%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 14 µg/L
6/13 SYR4 2016–2019
Barium
38 µg/L 1.9%
of the EPA limit 2000 µg/L
worst single sample: 39 µg/L
6/6 SYR4 2016–2019
Chromium
12 µg/L 12%
of the EPA limit 100 µg/L
 6/6 SYR4 2016–2019
Lead
8.75 µg/L 58%
of the EPA limit 15 µg/L
worst single sample: 10 µg/L
6/16 SYR4 2016–2019
Combined Uranium
3 µg/L 10%
of the EPA limit 30 µg/L
 4/4 SYR4 2016–2019
Di(2-ethylhexyl) Phthalate
2.89 µg/L 48%
of the EPA limit 6 µg/L
worst single sample: 3.1 µg/L
4/6 SYR4 2019
Nitrite
137.5 µg/L 14%
of the EPA limit 1000 µg/L
worst single sample: 140 µg/L
2/6 SYR4 2016–2019
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
 1/3 SYR4 2019
Gross Alpha, Excl. Radon And U
1.6 pCi/L 11%
of the EPA limit 15 pCi/L
 1/3 SYR4 2019
58 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDi(2-ethylhexyl) AdipateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ADAM PATRIDGE

Frequently asked questions about Lyme Water

Is Lyme Water tap water safe to drink?

EPA monitoring detected 11 contaminants in Lyme Water'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 Lyme Water's water?

EPA monitoring detected Copper, Nitrate, Arsenic, Barium, Chromium, and others. The full list with the level and data source for each is above.

How many people does Lyme Water serve?

Lyme Water reports serving 283 people in New Hampshire, per its EPA record.

Has Lyme Water had any water quality violations?

The EPA has 95 violations on file for Lyme Water, of which 67 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.