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Tap water quality report

Greenhorn Subd

EPA monitoring tested this supplier for 66 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

66
contaminants tested
7
detected
75
people served
51
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Private
Counties served
Blaine

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.

51
health-based violations
105
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-04-01 → 2020-06-30
MCL Health-based Resolved 2020-01-01 → 2020-03-31
MCL Health-based Resolved 2020-01-01 → 2020-03-31
MCL Health-based Resolved 2020-01-01 → 2020-03-31
MCL Health-based Resolved 2020-01-01 → 2020-03-31

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
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
TTHM
13.6 µg/L 17%
of the EPA limit 80 µg/L
 14/20 SYR4 2012–2019
Nitrate
2460 µg/L 25%
of the EPA limit 10000 µg/L
 10/22 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
1200 µg/L 2000%
of the EPA limit, in the worst sample — 60 µg/L
 9/20 SYR4 2012–2019
Barium
230 µg/L 12%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Combined Radium (-226 And -228)
0.7000 pCi/L 14%
of the EPA limit 5 pCi/L
 1/1 SYR4 2016
Combined Uranium
2 µg/L 6.7%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GILMOUR, JON
Phone
208-720-5893
Email
Jon@sawtoothproperties.com

Frequently asked questions about Greenhorn Subd

Is Greenhorn Subd tap water safe to drink?

EPA monitoring detected 7 contaminants in Greenhorn Subd'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 Greenhorn Subd's water?

EPA monitoring detected Lead, TTHM, Nitrate, Total Haloacetic Acids (HAA5), Barium, and others. The full list with the level and data source for each is above.

How many people does Greenhorn Subd serve?

Greenhorn Subd reports serving 75 people in Idaho, per its EPA record.

Has Greenhorn Subd had any water quality violations?

The EPA has 105 violations on file for Greenhorn Subd, of which 51 are health-based (a contaminant limit or required treatment was breached) and 2 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.