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Tap water quality report

Ctwc - Baker Hill Division

EPA monitoring tested this supplier for 81 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
19
detected
203
people served
14
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
Middlesex

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.

14
health-based violations
199
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1997-02-01 → 1997-02-28
MCL Health-based Resolved 1997-02-01 → 1997-02-28
MCL Health-based Resolved 1997-02-01 → 1997-02-28
MCL Health-based Resolved 1997-02-01 → 1997-02-28
MCL Health-based Resolved 1996-12-01 → 1996-12-31
MCL Health-based Resolved 1996-12-01 → 1996-12-31
MCL Health-based Resolved 1996-12-01 → 1996-12-31
MCL Health-based Resolved 1996-12-01 → 1996-12-31
MCL Health-based Resolved 1996-11-01 → 1996-11-30
MCL Health-based Resolved 1996-11-01 → 1996-11-30

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
Bromodichloromethane
6.6 µg/L
No EPA limit set
worst single sample: 9.3 µg/L
46/50 SYR4 2012–2019
Chloroform
8.975 µg/L
No EPA limit set
worst single sample: 19 µg/L
46/50 SYR4 2012–2019
Dibromochloromethane
4 µg/L
No EPA limit set
worst single sample: 6.6 µg/L
46/50 SYR4 2012–2019
Copper
482.4 µg/L 37%
of the EPA limit 1300 µg/L
worst single sample: 831 µg/L
45/45 SYR4 2012–2019
Bromoform
1.145 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
32/50 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2025
Nitrate
197 µg/L 2%
of the EPA limit 10000 µg/L
 16/34 SYR4 2012–2019
TTHM
30.9 µg/L 39%
of the EPA limit 80 µg/L
worst single sample: 35.1 µg/L
13/14 SYR4 2012–2019
Lead
4.9 µg/L 33%
of the EPA limit 15 µg/L
worst single sample: 6 µg/L
12/45 SYR4 2012–2019
Dichloroacetic Acid
2.5 µg/L
No EPA limit set
 8/13 SYR4 2012–2019
Nitrate-Nitrite
173.55 µg/L 1.7%
of the EPA limit 10000 µg/L
worst single sample: 197 µg/L
8/17 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
5.785 µg/L 9.6%
of the EPA limit 60 µg/L
worst single sample: 6.1 µg/L
8/13 SYR4 2012–2019
Barium
30 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 31 µg/L
5/5 SYR4 2013–2019
Dibromoacetic Acid
1.76 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
5/13 SYR4 2012–2019
Fluoride
263 µg/L 6.6%
of the EPA limit 4000 µg/L
worst single sample: 270 µg/L
3/5 SYR4 2013–2019
Gross Beta Particle Activity
31.13 pCi/L
No EPA limit set
worst single sample: 34 pCi/L
3/8 SYR4 2013–2019
Trichloroacetic Acid
3.24 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
3/13 SYR4 2012–2019
Combined Radium (-226 And -228)
1.4 pCi/L 28%
of the EPA limit 5 pCi/L
 1/8 SYR4 2013–2019
Toluene
0.5900 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/37 SYR4 2012–2019
62 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MCDERMOTT, GERALD
Phone
860-664-6125
Email
ctwcdphadmin@ctwater.com

Frequently asked questions about Ctwc - Baker Hill Division

Is Ctwc - Baker Hill Division tap water safe to drink?

EPA monitoring detected 19 contaminants in Ctwc - Baker Hill Division'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 Ctwc - Baker Hill Division's water?

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

How many people does Ctwc - Baker Hill Division serve?

Ctwc - Baker Hill Division reports serving 203 people in Connecticut, per its EPA record.

Has Ctwc - Baker Hill Division had any water quality violations?

The EPA has 199 violations on file for Ctwc - Baker Hill Division, of which 14 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.