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Tap water quality report

West Central Rwa - Nish

EPA monitoring tested this supplier for 91 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

91
contaminants tested
16
detected
3,573
people served
8
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Private
Counties served
Carroll

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.

8
health-based violations
62
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MR Monitoring Resolved 2017-05-01 → 2017-05-31
MR Monitoring Resolved 2017-05-01 → 2017-05-31

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
Nitrate
7100 µg/L 71%
of the EPA limit 10000 µg/L
 96/96 SYR4 2012–2019
Copper
960 µg/L 74%
of the EPA limit 1300 µg/L
 29/40 SYR4 2014–2017
Bromodichloromethane
15 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Bromoform
6.7 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Chloroform
13 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Dibromoacetic Acid
4 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Dibromochloromethane
15 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Dichloroacetic Acid
5 µg/L
No EPA limit set
 13/13 SYR4 2012–2018
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
TTHM
48 µg/L 60%
of the EPA limit 80 µg/L
 13/13 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
9 µg/L 15%
of the EPA limit 60 µg/L
 12/13 SYR4 2012–2018
Trichloroacetic Acid
3 µg/L
No EPA limit set
 8/13 SYR4 2012–2018
Lead
7 µg/L 47%
of the EPA limit 15 µg/L
 4/40 SYR4 2014–2017
Fluoride
810 µg/L 20%
of the EPA limit 4000 µg/L
 2/2 SYR4 2012–2015
Lithium
17 µg/L
No EPA limit set
 2/2 UCMR-5 2025
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
75 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneGlyphosateHfpo-DaLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WEST CENTRAL IOWA RURAL WATER ASSOC
Phone
712-655-2534
Email
info@wcirwa.com

Frequently asked questions about West Central Rwa - Nish

Is West Central Rwa - Nish tap water safe to drink?

EPA monitoring detected 16 contaminants in West Central Rwa - Nish'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 West Central Rwa - Nish's water?

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

How many people does West Central Rwa - Nish serve?

West Central Rwa - Nish reports serving 3,573 people in Iowa, per its EPA record.

Has West Central Rwa - Nish had any water quality violations?

The EPA has 62 violations on file for West Central Rwa - Nish, of which 8 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.