Compliance record
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.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 63.675 µg/L 80% of the EPA limit 80 µg/L
worst single sample: 74.2 µg/L | 136/136 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 19.475 µg/L 32% of the EPA limit 60 µg/L
worst single sample: 21.18 µg/L | 136/136 | SYR4 | 2012–2019 |
| Bromodichloromethane | 20.795 µg/L No EPA limit set
worst single sample: 23.3 µg/L | 90/91 | SYR4 | 2012–2019 |
| Chloroform | 26.195 µg/L No EPA limit set
worst single sample: 36 µg/L | 90/91 | SYR4 | 2012–2019 |
| Dibromochloromethane | 23.565 µg/L No EPA limit set
worst single sample: 34.8 µg/L | 90/91 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 7.665 µg/L No EPA limit set
worst single sample: 10.27 µg/L | 88/88 | SYR4 | 2015–2019 |
| Dibromoacetic Acid | 4.785 µg/L No EPA limit set
worst single sample: 6.1 µg/L | 84/88 | SYR4 | 2015–2019 |
| Bromoform | 10 µg/L No EPA limit set
worst single sample: 18 µg/L | 77/91 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 4.57 µg/L No EPA limit set
worst single sample: 10.9 µg/L | 77/88 | SYR4 | 2015–2019 |
| Monobromoacetic Acid | 1.59 µg/L No EPA limit set
worst single sample: 1.6 µg/L | 23/88 | SYR4 | 2015–2019 |
| Nitrate | 500 µg/L 5% of the EPA limit 10000 µg/L | 18/18 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2025 |
| Fluoride | 909.5 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 1040 µg/L | 10/11 | SYR4 | 2012–2019 |
| Barium | 39.95 µg/L 2% of the EPA limit 2000 µg/L
worst single sample: 41 µg/L | 8/8 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 1.86 µg/L No EPA limit set | 8/88 | SYR4 | 2015–2019 |
| Lithium | 35.5 µg/L No EPA limit set | 4/4 | UCMR-5 | 2023 |
| Gross Alpha, Excl. Radon And U | 0.4000 pCi/L 2.7% of the EPA limit 15 pCi/L | 1/2 | SYR4 | 2015–2017 |
| Nitrate-Nitrite | 180 µg/L 1.8% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2012 |
90 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Golden City of
Is Golden City of tap water safe to drink?
EPA monitoring detected 18 contaminants in Golden City of'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 Golden City of's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Golden City of serve?
Golden City of reports serving 38,288 people in Colorado, per its EPA record.
Has Golden City of had any water quality violations?
The EPA has no formal drinking-water violations on file for Golden City of.
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.