Tap WaterIndex

← Colorado

Tap water quality report

Granby Town of South Service Area

EPA monitoring tested this supplier for 77 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

77
contaminants tested
20
detected
2,300
people served
0
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water under surface influence
Ownership
Local government
Counties served
Grand

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.

0
health-based violations
21
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2026-03-01 → 2026-03-31
MR Monitoring Resolved 2026-03-01 → 2026-03-31
MR Monitoring Resolved 2026-03-01 → 2026-03-31
MR Monitoring Resolved 2018-10-01 → 2018-10-31
MR Monitoring Resolved 2018-10-01 → 2018-10-31
MR Monitoring Resolved 2018-10-01 → 2018-10-31
MR Monitoring Resolved 2018-10-01 → 2018-10-31
MR Monitoring Resolved 2007-01-01 → 2007-12-31
MR Monitoring Resolved 2007-01-01 → 2007-12-31
MR Monitoring Resolved 2007-01-01 → 2007-12-31

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
Nitrate
655 µg/L 6.6%
of the EPA limit 10000 µg/L
worst single sample: 700 µg/L
24/24 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2023
TTHM
34.15 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 34.8 µg/L
14/14 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
17.897 µg/L 30%
of the EPA limit 60 µg/L
worst single sample: 18.3 µg/L
14/14 SYR4 2012–2019
Bromodichloromethane
9.7 µg/L
No EPA limit set
 11/12 SYR4 2012–2019
Chloroform
16 µg/L
No EPA limit set
worst single sample: 17.1 µg/L
11/12 SYR4 2012–2019
Dibromoacetic Acid
2.55 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
11/11 SYR4 2015–2019
Dibromochloromethane
7 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
11/12 SYR4 2012–2019
Dichloroacetic Acid
8.655 µg/L
No EPA limit set
worst single sample: 8.7 µg/L
11/11 SYR4 2015–2019
Trichloroacetic Acid
5.975 µg/L
No EPA limit set
worst single sample: 6.05 µg/L
11/11 SYR4 2015–2019
Bromoform
1.71 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
10/12 SYR4 2012–2019
Barium
51 µg/L 2.6%
of the EPA limit 2000 µg/L
worst single sample: 53 µg/L
5/5 SYR4 2012–2019
Fluoride
1046 µg/L 26%
of the EPA limit 4000 µg/L
worst single sample: 1100 µg/L
5/5 SYR4 2012–2019
Monochloroacetic Acid
1.78 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
3/11 SYR4 2015–2019
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 2/5 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
0.7120 pCi/L 4.7%
of the EPA limit 15 pCi/L
 2/2 SYR4 2015
Monobromoacetic Acid
4.135 µg/L
No EPA limit set
worst single sample: 4.3 µg/L
2/11 SYR4 2015–2019
Combined Radium (-226 And -228)
0.8000 pCi/L 16%
of the EPA limit 5 pCi/L
 1/1 SYR4 2012
Combined Uranium
6.4 µg/L 21%
of the EPA limit 30 µg/L
 1/1 SYR4 2015
Nitrate-Nitrite
260 µg/L 2.6%
of the EPA limit 10000 µg/L
 1/1 SYR4 2012
57 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 TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BROADY, JOSHUA
Phone
970-531-3110
Email
[email protected]

Frequently asked questions about Granby Town of South Service Area

Is Granby Town of South Service Area tap water safe to drink?

EPA monitoring detected 20 contaminants in Granby Town of South Service Area'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 Granby Town of South Service Area's water?

EPA monitoring detected Nitrate, Lead, TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Granby Town of South Service Area serve?

Granby Town of South Service Area reports serving 2,300 people in Colorado, per its EPA record.

Has Granby Town of South Service Area had any water quality violations?

The EPA has 21 violations on file for Granby Town of South Service Area, of which 0 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.