Tap WaterIndex

← Iowa

Tap water quality report

Ridgeway, IA

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Ridgeway. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
307
people served
18
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Ridgeway's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
890 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2016
2/2 SYR4
Barium
117.6 µg/L 5.9%
of the EPA limit 2000 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2016
Highest in the city: 206 µg/L — PLANTATION COUNTRY VIEW SUBDIVISION · 32 people · 2013
2/2 SYR4
Copper
188.8 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2018
2/2 SYR4
TTHM
26.94 µg/L 34%
of the EPA limit 80 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
15.5 pCi/L 103%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2015
1/2 SYR4
Total Haloacetic Acids (HAA5)
12.875 µg/L 21%
of the EPA limit 60 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Chloroform
11.85 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Monochloroacetic Acid
7.28 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Dibromochloromethane
7.223 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Bromodichloromethane
6.442 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Lead
4.84 µg/L 32%
of the EPA limit 15 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2018
2/2 SYR4
Dichloroacetic Acid
3.8795 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Bromoform
2.056 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.708 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Arsenic
1.7 µg/L 17%
of the EPA limit 10 µg/L
Highest in the city: PLANTATION COUNTRY VIEW SUBDIVISION · 32 people · 2013
1/2 SYR4
Trichloroacetic Acid
1.645 µg/L
No EPA limit set
Main supplier: RIDGEWAY, CITY OF · 275 people · 2019
1/2 SYR4
Selenium
1.1 µg/L 2.2%
of the EPA limit 50 µg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2016
1/2 SYR4
Lead
0.0048 mg/L 32%
of the EPA limit 0.0150 mg/L
Main supplier: RIDGEWAY, CITY OF · 275 people · 2024
Highest in the city: 0.0079 mg/L — PLANTATION COUNTRY VIEW SUBDIVISION · 32 people · 2023
2/2 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Ridgeway

SupplierPopulation served
RIDGEWAY, CITY OF 275
PLANTATION COUNTRY VIEW SUBDIVISION 32

Frequently asked questions about Ridgeway tap water

Is Ridgeway tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Ridgeway. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Ridgeway?

2 public water suppliers report drinking-water monitoring for Ridgeway, Iowa to the EPA. Each is listed above with its population served.

What contaminants are in Ridgeway's water?

The contaminants EPA monitoring detected in Ridgeway include Fluoride, Barium, Copper, TTHM, Gross Alpha, Excl. Radon And U. The full list, with the level at the main supplier and the data source, is in the table above.

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.