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Tap water quality report

Chestnut Ridge

EPA monitoring tested this supplier for 60 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

60
contaminants tested
10
detected
33
people served
26
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Private
Counties served
Linn

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.

26
health-based violations
88
violations on file
8
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2018-02-01
MCL Health-based Resolved 2009-09-01 → 2009-09-30
MCL Health-based Resolved 2009-09-01 → 2009-09-30
MCL Health-based Resolved 2009-09-01 → 2009-09-30
MCL Health-based Resolved 2009-09-01 → 2009-09-30
MCL Health-based Resolved 2009-09-01 → 2009-09-30

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
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2023
Copper
20 µg/L 1.5%
of the EPA limit 1300 µg/L
 5/10 SYR4 2014–2017
Chloroform
1.55 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
2/2 SYR4 2014–2017
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Bromodichloromethane
1.2 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.2 pCi/L 24%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Dibromochloromethane
0.8000 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
Fluoride
330 µg/L 8.3%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
TTHM
3.6 µg/L 4.5%
of the EPA limit 80 µg/L
 1/2 SYR4 2014–2017
Toluene
2 µg/L 0.2%
of the EPA limit 1000 µg/L
 1/3 SYR4 2012–2018
50 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)PyreneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylbenzeneGlyphosateLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitratePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHESTNUT RIDGE
Phone
319-393-5968

Frequently asked questions about Chestnut Ridge

Is Chestnut Ridge tap water safe to drink?

EPA monitoring detected 10 contaminants in Chestnut Ridge'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 Chestnut Ridge's water?

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

How many people does Chestnut Ridge serve?

Chestnut Ridge reports serving 33 people in Iowa, per its EPA record.

Has Chestnut Ridge had any water quality violations?

The EPA has 88 violations on file for Chestnut Ridge, of which 26 are health-based (a contaminant limit or required treatment was breached) and 8 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.