Tap and WellTreasure Valley water, from the public record

Drake Subdivision water quality

1 contaminant above a federal limit. hardness not in the latest CCR.

ID3140028. Data through 2025-12-26. DEQ record.

What's in it

Nitrate (as N)

Above limit
12.20ppm of 10.00ppm federal limit

EPA: infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die.

Aquasana OptimH2O Reverse Osmosis + Claryum is certified to reduce it.

Arsenic

Elevated
8.6ppb of 10.0ppb federal limit

Aquasana OptimH2O Reverse Osmosis + Claryum is certified to reduce it.

2 other contaminants tested, not detected or well below the limit

Copper 0.10ppm Lead 7.0ppb

Filters that match

Start with this

Aquasana OptimH2O Reverse Osmosis + Claryum

under sink ro · diy

  • Arsenicremoves it, NSF or WQA certified
  • Nitrate (as N)removes it, NSF or WQA certified
Detections ranked by share of the limitevery Tier 1 detection, highest first
12.20ppm of 10.00ppm
1.2x
Above limit
8.6ppb of 10.0ppb
lab result 10.5ppb
86%
Elevated avg
Lead 90th pct
7.0ppb of 15.0ppb
47%
Detected 90th pct
Copper 90th pct
0.10ppm of 1.30ppm
8%
Detected 90th pct

Bar length is the highest result in the last 36 months as a share of the federal limit (MCL, or action level for lead and copper). The dark tick marks the limit. Gross alpha is compared after subtracting uranium, as DEQ does for compliance.

Full contaminants reporthighest, latest, limit, trend, last sample
ContaminantHighest, 36 moFederal limitShare of limitStatusTrendLast sample
Arsenic10.5ppb
latest 9.0ppb
10.0ppb MCL86%Elevated2025-12-26
Copper
90th percentile at home taps
note
0.10ppm1.30ppm AL8%Detected2026-09-14
Lead
90th percentile at home taps
note
7.0ppb15.0ppb AL47%Detected2026-09-14
Nitrate (as N)12.20ppm10.00ppm MCL1.2xAbove limit2025-12-26
  • Copper: 90th percentile of samples taken at customer taps. Results depend on the home's plumbing.
  • Lead: 90th percentile of samples taken at customer taps. Results depend on the home's plumbing.

ppb = parts per billion (µg/L), ppm = parts per million (mg/L), ppt = parts per trillion. ND = not detected above the lab's reporting limit. MCL = federal maximum contaminant level; AL = action level for lead and copper (90th percentile of home taps); aesthetic = secondary standard for taste, odor or staining, not health. Bars show the highest result in 36 months as a share of the limit.

Hardness

Hardness is not reported in the latest CCR. Hardness not reported for this system; softener sizing uses a regional default of 11.7 gpg until a CCR value is reviewed.

Track record137 violations on record, 24 health-based
2017
2 2018
4 2019
20 2020
7 2021
6 2022
34 2023
6 2024
2 2025
55 2026

no violation recorded n monitoring or reporting only n includes a health-based violation ? outside the loaded record

Health-based violations

PeriodWhat happenedContaminantRuleStatus
2025-04-01 to 2025-06-30Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2024-01-01 to 2024-03-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2023-01-01 to 2023-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2023-01-01 to 2023-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2022-10-01 to 2022-12-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2022-10-01 to 2022-12-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2022-04-01 to 2022-06-30Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2022-01-01 to 2022-03-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2021-10-01 to 2021-12-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2021-07-01 to 2021-09-30Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2021-07-01 to 2021-09-30Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2021-07-01 to 2021-09-30Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2021-07-01 to 2021-09-30Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2021-01-01 to 2021-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2021-01-01 to 2021-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2020-10-01 to 2020-12-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2020-10-01 to 2020-12-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2020-07-01 to 2020-09-30Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
2020-07-01 to 2020-09-30Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2020-04-01 to 2020-06-30Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2020-04-01 to 2020-06-30Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2020-01-01 to 2020-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2020-01-01 to 2020-03-31Maximum contaminant level exceeded (Average MCL exceeded)Nitrate (as N)Nitratesresolved
2019-10-01 to 2019-12-31Maximum contaminant level exceeded (Single sample MCL exceeded)Nitrate (as N)Nitratesresolved
Monitoring and reporting violations (113)

A required sample or report was late or missing. These do not mean a contaminant was found, but a system that skips monitoring has gaps in its record.

YearRuleCountDetail
2026Volatile Organic Chemicals21Routine monitoring, major · Benzene, Tetrachloroethylene, Trichloroethylene
2026Synthetic Organic Chemicals29Routine monitoring, major · 1,2-Dibromo-3-chloropropane, Atrazine
2026Stage 1 Disinfectants and Disinfection Byproducts Rule1Monitoring and reporting (DBP) · Chlorine (residual)
2026Nitrates2Routine monitoring, major · Nitrate (as N)
2026Miscellaneous1Routine monitoring, major · Sodium
2026Arsenic1Routine monitoring, major · Arsenic
2025Public Notification Rule1 (1 open)Public notice rule linked to violation
2024Public Notification Rule1 (1 open)Public notice rule linked to violation
2024Nitrates3Routine monitoring, major · Nitrate (as N)
2024Lead and Copper Rule1 (1 open)Follow-up or routine tap sampling (LCR)
2023Synthetic Organic Chemicals29Routine monitoring, major · 1,2-Dibromo-3-chloropropane, Atrazine
2023Radionuclides2Routine monitoring, major · Gross Alpha, Uranium
2023Miscellaneous1Routine monitoring, major · Sodium
2022Revised Total Coliform Rule1Monitoring, routine (RTCR)
2022Arsenic1Routine monitoring, major · Arsenic
2020Nitrates2Routine monitoring, major · Nitrite (as N)
2020Inorganic Chemicals10Routine monitoring, major · Antimony, Barium, Beryllium, Cadmium, Chromium (total), Fluoride, Mercury (inorganic), Selenium, Thallium
2019Nitrates2Routine monitoring, major · Nitrate (as N)
2019Arsenic1Routine monitoring, major · Arsenic
2018Nitrates1Routine monitoring, major · Nitrate (as N)
2018Ground Water Rule1Monitoring, routine major (TCR) · E. coli
2016Revised Total Coliform Rule1Monitoring, routine (RTCR)
Lead and copper at the tap90th percentile of sampled homes against the action level
Lead at customer taps
7.0ppb 90th percentile · action level 15.0ppb
47%
Detected 5 homes sampled, 2025-01-01 to 2027-12-31
semiannual 90th percentiles

90th percentile of samples taken at customer taps. Results depend on the home's plumbing. Results are from sampled homes in this system, not from your tap. Home plumbing can add lead and copper. First-draw samples run higher than flushed ones.

Copper at customer taps
0.10ppm 90th percentile · action level 1.30ppm
8%
Detected 5 homes sampled, 2025-01-01 to 2027-12-31
semiannual 90th percentiles

90th percentile of samples taken at customer taps. Results depend on the home's plumbing. Results are from sampled homes in this system, not from your tap. Home plumbing can add lead and copper. First-draw samples run higher than flushed ones.

Where the water comes from2 active wells

2 active wells, and 2 treatment points on record (SDWIS counts each chlorination or filtration point as a treatment plant).

Source names (2)

WELL #3, WELL #4

Every match, by categorytop three per category

We may earn a commission if you buy through these links. Rankings come from the matching engine (certification + flagged contaminants + annual cost), not from who pays more. How we earn money. As an Amazon Associate we earn from qualifying purchases. Prices are not shown; Amazon sets them on its site.

Drinking water

Under sink, pitcher, or faucet. Treats the water you drink and cook with.

Ranked first for this water under sink ro · DIY

Aquasana OptimH2O Reverse Osmosis + Claryum

Certified for nitrate, arsenic, and lead (NSF/ANSI 58, pentavalent).

Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.

Certified forArsenic, Nitrate (as N), Lead
Also fits under sink ro · DIY

Express Water RO5DX 5-Stage Reverse Osmosis System (50 GPD)

Manufacturer-reported reduction for nitrate, arsenic, and lead. Not NSF-certified for nitrate, arsenic, and lead.

Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.

Manufacturer-reported, not certifiedArsenic, Nitrate (as N), Lead

Whole house

Installed where water enters the house. For fixtures, laundry and showers.

Softener or conditioner

Worth it at 7 grains per gallon or more.

Questions about Drake Subdivision

Is Drake Subdivision tap water safe to drink?

In the last 36 months at least one result for Drake Subdivision was above a federal limit: Nitrate (as N). A single high sample is not always a violation because compliance is often judged on a running average; the violations section shows what EPA recorded. Results reflect the system's sampling points, not the plumbing in any one home.

Is Drake Subdivision water hard?

Hardness has not been reported for Drake Subdivision in a reviewed Consumer Confidence Report yet. The softener sizing widget uses a labelled county default until a report is reviewed.

Is Drake Subdivision water fluoridated?

No fluoride result in the last 36 months.

Where does Drake Subdivision water come from?

Drake Subdivision draws from 2 active wells with 2 treatment plants on record. Source and treatment details are listed above.

What filter fits Drake Subdivision water?

For drinking water the matching engine ranks Aquasana OptimH2O Reverse Osmosis + Claryum first for this profile, based on certified reduction claims for the contaminants flagged above. See the filters section for the reasoning and alternatives.

What was above the limit in Drake Subdivision water?

Nitrate (as N). Compare the value with the limit in the ranked chart and the full report above, and check the violations section for whether EPA recorded a violation.

Who to call

  • System contact: REFSLAND, MARILYN, 208-366-9445
  • DEQ Boise Regional Office, 1445 N Orchard St, Boise ID 83706, (208) 373-0550
  • Southwest District Health (well testing, septic, local health questions)

Sources

Sample results as of 2025-12-26; inventory and violations from EPA SDWIS; page built 2026-09-14. 42 individual results reviewed.

More: Canyon County, Arsenic, Nitrate (as N)

Numbers are the system's samples at its taps and wells, not yours. Lead and copper are 90th percentiles from sampled homes. Well pages are nearby-sample estimates. Health text restates EPA and DEQ. Methodology.