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Tap water quality report

Rockingham County Complex

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
1,387
people served
10
health-based violations
New Hampshire rankingsLead in New HampshirePFAS in New Hampshire
Water source
Ground water
Ownership
Local government
Counties served
Rockingham

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.

10
health-based violations
12
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1996-02-01 → 1996-02-29
MCL Health-based Resolved 1996-02-01 → 1996-02-29

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
117 µg/L 9%
of the EPA limit 1300 µg/L
worst single sample: 138.3 µg/L
24/24 SYR4 2014–2018
Nitrate
1500 µg/L 15%
of the EPA limit 10000 µg/L
 14/24 SYR4 2014–2019
Bromoform
1.4 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
11/23 SYR4 2014–2019
Dibromochloromethane
1.8 µg/L
No EPA limit set
 11/23 SYR4 2014–2019
Lead
4.4 µg/L 29%
of the EPA limit 15 µg/L
worst single sample: 4.8 µg/L
11/20 SYR4 2014–2017
TTHM
5.24 µg/L 6.6%
of the EPA limit 80 µg/L
worst single sample: 5.68 µg/L
11/11 SYR4 2014–2019
Bromodichloromethane
1.585 µg/L
No EPA limit set
worst single sample: 1.9 µg/L
10/23 SYR4 2014–2019
Dibromoacetic Acid
2.02 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
9/11 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
2.02 µg/L 3.4%
of the EPA limit 60 µg/L
worst single sample: 2.1 µg/L
9/11 SYR4 2014–2019
Barium
9.55 µg/L 0.5%
of the EPA limit 2000 µg/L
worst single sample: 10 µg/L
4/4 SYR4 2015–2018
Chloroform
1.165 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/23 SYR4 2014–2019
Combined Radium (-226 And -228)
0.5750 pCi/L 12%
of the EPA limit 5 pCi/L
worst single sample: 0.6000 pCi/L
2/2 SYR4 2015
Combined Uranium
0.5950 µg/L 2%
of the EPA limit 30 µg/L
worst single sample: 0.6000 µg/L
2/2 SYR4 2015
Gross Alpha, Excl. Radon And U
1.36 pCi/L 9.1%
of the EPA limit 15 pCi/L
worst single sample: 1.4 pCi/L
2/2 SYR4 2015
Nitrate-Nitrite
1347.5 µg/L 13%
of the EPA limit 10000 µg/L
worst single sample: 1400 µg/L
2/2 SYR4 2014
Lead
0.0220 mg/L 147%
above the EPA limit of 0.0150 mg/L
 1/1 LCR 1997
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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JUDE GATES

Frequently asked questions about Rockingham County Complex

Is Rockingham County Complex tap water safe to drink?

EPA monitoring detected 16 contaminants in Rockingham 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 Rockingham County Complex's water?

EPA monitoring detected Copper, Nitrate, Bromoform, Dibromochloromethane, Lead, and others. The full list with the level and data source for each is above.

How many people does Rockingham County Complex serve?

Rockingham County Complex reports serving 1,387 people in New Hampshire, per its EPA record.

Has Rockingham County Complex had any water quality violations?

The EPA has 12 violations on file for Rockingham County Complex, of which 10 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.