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Tap water quality report

Rio Grande Water Company

EPA monitoring tested this supplier for 68 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
17
detected
265
people served
15
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water under surface influence
Ownership
Private
Counties served
Rio Grande

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
208
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2008-04-01 → 2008-04-30
TT Health-based Resolved 2008-04-01 → 2008-04-30
TT Health-based Resolved 2008-04-01 → 2008-04-30
TT Health-based Resolved 2008-03-01 → 2008-03-31
TT Health-based Resolved 2008-03-01 → 2008-03-31
TT Health-based Resolved 2008-03-01 → 2008-03-31
TT Health-based Resolved 2008-03-01 → 2008-03-31
TT Health-based Resolved 2008-02-01 → 2008-02-29
TT Health-based Resolved 2008-02-01 → 2008-02-29
TT Health-based Resolved 2008-02-01 → 2008-02-29

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
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2025
Nitrate
3179.5 µg/L 32%
of the EPA limit 10000 µg/L
worst single sample: 3190 µg/L
24/24 SYR4 2012–2019
TTHM
23.38 µg/L 29%
of the EPA limit 80 µg/L
worst single sample: 28.1 µg/L
9/9 SYR4 2012–2019
Dibromochloromethane
6.39 µg/L
No EPA limit set
worst single sample: 6.6 µg/L
8/8 SYR4 2012–2019
Bromodichloromethane
2.57 µg/L
No EPA limit set
worst single sample: 2.9 µg/L
7/8 SYR4 2012–2019
Bromoform
19.13 µg/L
No EPA limit set
worst single sample: 22.7 µg/L
7/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
4.44 µg/L 7.4%
of the EPA limit 60 µg/L
worst single sample: 4.5 µg/L
7/9 SYR4 2012–2019
Fluoride
165 µg/L 4.1%
of the EPA limit 4000 µg/L
worst single sample: 170 µg/L
6/8 SYR4 2012–2019
Dibromoacetic Acid
3.57 µg/L
No EPA limit set
worst single sample: 3.6 µg/L
4/6 SYR4 2015–2019
Gross Alpha, Excl. Radon And U
4.1 pCi/L 27%
of the EPA limit 15 pCi/L
 4/4 SYR4 2012–2014
Nitrate-Nitrite
3000 µg/L 30%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2013
Chloroform
0.9800 µg/L
No EPA limit set
worst single sample: 1 µg/L
2/8 SYR4 2012–2019
Xylenes, Total
1520.1 µg/L 15%
of the EPA limit 10000 µg/L
worst single sample: 1600 µg/L
2/8 SYR4 2012–2019
Combined Radium (-226 And -228)
0.2000 pCi/L 4%
of the EPA limit 5 pCi/L
 1/3 SYR4 2012–2013
Combined Uranium
0.7000 µg/L 2.3%
of the EPA limit 30 µg/L
 1/4 SYR4 2012–2014
Dichloroacetic Acid
1.1 µg/L
No EPA limit set
 1/6 SYR4 2015–2019
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 1/6 SYR4 2015–2019
51 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-DAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GARCIA, MARY GRACE
Phone
719-873-9710
Email
info@riograndewaterco.com

Frequently asked questions about Rio Grande Water Company

Is Rio Grande Water Company tap water safe to drink?

EPA monitoring detected 17 contaminants in Rio Grande Water Company'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 Rio Grande Water Company's water?

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

How many people does Rio Grande Water Company serve?

Rio Grande Water Company reports serving 265 people in Colorado, per its EPA record.

Has Rio Grande Water Company had any water quality violations?

The EPA has 208 violations on file for Rio Grande Water Company, 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.