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Tap water quality report

Ridgeway, City of

EPA monitoring tested this supplier for 62 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

62
contaminants tested
17
detected
275
people served
0
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Winneshiek

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
83
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2019-10-01 → 2025-09-30
MR Monitoring Resolved 2019-10-01 → 2025-09-30
MR Monitoring Resolved 2019-10-01 → 2025-09-30
MR Monitoring Resolved 2001-07-01 → 2002-06-30
MR Monitoring Resolved 2001-07-01 → 2002-06-30
MR Monitoring Resolved 2001-07-01 → 2002-06-30
MR Monitoring Resolved 2001-07-01 → 2002-06-30
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01
MR Monitoring Resolved 1992-07-01

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
Copper
188.8 µg/L 15%
of the EPA limit 1300 µg/L
worst single sample: 333 µg/L
15/15 SYR4 2012–2018
Lead
0.0048 mg/L 32%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Lead
4.84 µg/L 32%
of the EPA limit 15 µg/L
worst single sample: 5.6 µg/L
9/15 SYR4 2012–2018
Bromodichloromethane
6.442 µg/L
No EPA limit set
worst single sample: 6.54 µg/L
3/3 SYR4 2013–2019
Bromoform
2.056 µg/L
No EPA limit set
worst single sample: 2.09 µg/L
3/3 SYR4 2013–2019
Chloroform
11.85 µg/L
No EPA limit set
worst single sample: 11.9 µg/L
3/3 SYR4 2013–2019
Dibromoacetic Acid
1.708 µg/L
No EPA limit set
worst single sample: 1.74 µg/L
3/3 SYR4 2013–2019
Dibromochloromethane
7.223 µg/L
No EPA limit set
worst single sample: 7.42 µg/L
3/3 SYR4 2013–2019
Monochloroacetic Acid
7.28 µg/L
No EPA limit set
worst single sample: 7.71 µg/L
3/3 SYR4 2013–2019
TTHM
26.94 µg/L 34%
of the EPA limit 80 µg/L
worst single sample: 27.6 µg/L
3/3 SYR4 2013–2019
Trichloroacetic Acid
1.645 µg/L
No EPA limit set
worst single sample: 1.72 µg/L
3/3 SYR4 2013–2019
Barium
117.6 µg/L 5.9%
of the EPA limit 2000 µg/L
worst single sample: 118 µg/L
2/2 SYR4 2013–2016
Dichloroacetic Acid
3.8795 µg/L
No EPA limit set
worst single sample: 3.95 µg/L
2/3 SYR4 2013–2019
Fluoride
890 µg/L 22%
of the EPA limit 4000 µg/L
worst single sample: 900 µg/L
2/2 SYR4 2013–2016
Total Haloacetic Acids (HAA5)
12.875 µg/L 21%
of the EPA limit 60 µg/L
worst single sample: 13 µg/L
2/3 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
15.5 pCi/L 103%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
 1/1 SYR4 2015
Selenium
1.1 µg/L 2.2%
of the EPA limit 50 µg/L
 1/2 SYR4 2013–2016
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidNitratePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RIDGEWAY, CITY OF
Phone
563-737-2457
Email
[email protected]

Frequently asked questions about Ridgeway, City of

Is Ridgeway, City of tap water safe to drink?

EPA monitoring detected 17 contaminants in Ridgeway, 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 Ridgeway, City of's water?

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

How many people does Ridgeway, City of serve?

Ridgeway, City of reports serving 275 people in Iowa, per its EPA record.

Has Ridgeway, City of had any water quality violations?

The EPA has 83 violations on file for Ridgeway, City of, 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.