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Tap water quality report

Carroll County Complex

EPA monitoring tested this supplier for 77 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

77
contaminants tested
13
detected
258
people served
15
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Local government
Counties served
Carroll

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.

15
health-based violations
285
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31

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
59.88 µg/L 4.6%
of the EPA limit 1300 µg/L
worst single sample: 66.9 µg/L
10/14 SYR4 2014–2019
Lead
2.5 µg/L 17%
of the EPA limit 15 µg/L
worst single sample: 2.6 µg/L
6/10 SYR4 2016–2019
Chloroform
3.24 µg/L
No EPA limit set
worst single sample: 3.9 µg/L
5/11 SYR4 2016–2019
Barium
10.26 µg/L 0.5%
of the EPA limit 2000 µg/L
worst single sample: 10.5 µg/L
4/4 SYR4 2014–2018
Fluoride
1800 µg/L 45%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2018
Nitrate
52 µg/L 0.5%
of the EPA limit 10000 µg/L
 4/26 SYR4 2014–2019
Combined Radium (-226 And -228)
3.09 pCi/L 62%
of the EPA limit 5 pCi/L
worst single sample: 3.3 pCi/L
3/3 SYR4 2015–2019
Combined Uranium
7.71 µg/L 26%
of the EPA limit 30 µg/L
worst single sample: 7.9 µg/L
3/3 SYR4 2015–2019
Lead
0.0210 mg/L 140%
above the EPA limit of 0.0150 mg/L
 2/2 LCR 2000
Nitrate-Nitrite
53.8 µg/L 0.5%
of the EPA limit 10000 µg/L
worst single sample: 54 µg/L
2/13 SYR4 2014–2019
Dichloroacetic Acid
1 µg/L
No EPA limit set
 1/3 SYR4 2016–2019
Gross Alpha, Excl. Radon And U
5 pCi/L 33%
of the EPA limit 15 pCi/L
 1/2 SYR4 2015–2019
Total Haloacetic Acids (HAA5)
1 µg/L 1.7%
of the EPA limit 60 µg/L
 1/3 SYR4 2016–2019
64 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, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WILL DEWITTE

Frequently asked questions about Carroll County Complex

Is Carroll County Complex tap water safe to drink?

EPA monitoring detected 13 contaminants in Carroll County Complex'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 Carroll County Complex's water?

EPA monitoring detected Copper, Lead, Chloroform, Barium, Fluoride, and others. The full list with the level and data source for each is above.

How many people does Carroll County Complex serve?

Carroll County Complex reports serving 258 people in New Hampshire, per its EPA record.

Has Carroll County Complex had any water quality violations?

The EPA has 285 violations on file for Carroll County Complex, of which 15 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.