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Tap water quality report

Sans Souci Cooperative

EPA monitoring tested this supplier for 77 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

77
contaminants tested
19
detected
150
people served
66
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water under surface influence
Ownership
Private
Counties served
Boulder

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.

66
health-based violations
519
violations on file
21
still open
ViolationTypeStatusPeriod
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Addressed 2025-11-08
TT Health-based Resolved 2022-12-24

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2025
Barium
119 µg/L 5.9%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Fluoride
350 µg/L 8.8%
of the EPA limit 4000 µg/L
 8/8 SYR4 2012–2019
Nitrate
1300 µg/L 13%
of the EPA limit 10000 µg/L
 8/16 SYR4 2012–2019
TTHM
21.5 µg/L 27%
of the EPA limit 80 µg/L
 8/8 SYR4 2012–2019
Bromodichloromethane
7.6 µg/L
No EPA limit set
 6/6 SYR4 2012–2019
Bromoform
4.2 µg/L
No EPA limit set
 6/6 SYR4 2012–2019
Dibromochloromethane
8.2 µg/L
No EPA limit set
 6/6 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
9.7 µg/L 16%
of the EPA limit 60 µg/L
 6/8 SYR4 2012–2019
Chloroform
4.7 µg/L
No EPA limit set
 5/6 SYR4 2012–2019
Chromium
3 µg/L 3%
of the EPA limit 100 µg/L
 5/8 SYR4 2012–2019
Dibromoacetic Acid
4.5 µg/L
No EPA limit set
 5/5 SYR4 2015–2019
Dichloroacetic Acid
3.9 µg/L
No EPA limit set
 4/5 SYR4 2015–2019
Selenium
3.5 µg/L 7%
of the EPA limit 50 µg/L
 4/8 SYR4 2012–2019
Trichloroacetic Acid
2.3 µg/L
No EPA limit set
 2/5 SYR4 2015–2019
Combined Radium (-226 And -228)
2 pCi/L 40%
of the EPA limit 5 pCi/L
 1/1 SYR4 2019
Gross Alpha, Excl. Radon And U
2.5 pCi/L 17%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
Monochloroacetic Acid
2.33 µg/L
No EPA limit set
 1/5 SYR4 2015–2019
Nitrate-Nitrite
1000 µg/L 10%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
58 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 TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KUHN, PEGGY
Phone
970-370-6955
Email
peggykn@gmail.com

Frequently asked questions about Sans Souci Cooperative

Is Sans Souci Cooperative tap water safe to drink?

EPA monitoring detected 19 contaminants in Sans Souci Cooperative'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 Sans Souci Cooperative's water?

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

How many people does Sans Souci Cooperative serve?

Sans Souci Cooperative reports serving 150 people in Colorado, per its EPA record.

Has Sans Souci Cooperative had any water quality violations?

The EPA has 519 violations on file for Sans Souci Cooperative, of which 66 are health-based (a contaminant limit or required treatment was breached) and 21 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.