Tap and WellTreasure Valley water, from the public record

Riley Trailer Park water quality

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

ID4010121. Data through 2026-04-07. DEQ record.

What's in it

Gross Alpha

Above limit
24.1pCi/L of 15.0pCi/L federal limit

Aquasana OptimH2O Reverse Osmosis + Claryum: manufacturer-reported, not certified.

Arsenic

Elevated
6.1ppb of 10.0ppb federal limit

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

3.5ppt of 10.0ppt federal limit

Aquasana OptimH2O Reverse Osmosis + Claryum: manufacturer-reported, not certified.

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

Copper 0.11ppm Lead ND Nitrate (as N) 4.30ppm PFHxS ND Radium 226 + 228 0.00pCi/L Total Trihalomethanes ND Uranium 5.0ppb

Filters that match

Start with this

Aquasana OptimH2O Reverse Osmosis + Claryum

under sink ro · diy

  • Arsenicremoves it, NSF or WQA certified
  • Gross Alpharemoves it, per manufacturer testing
  • HFPO-DA (GenX)removes it, per manufacturer testing
Detections ranked by share of the limitevery Tier 1 detection, highest first
24.1pCi/L of 15.0pCi/L
lab result 27.4pCi/L, uranium-adjusted
1.6x
Above limit avg
6.1ppb of 10.0ppb
61%
Elevated avg
4.30ppm of 10.00ppm
43%
Detected
3.5ppt of 10.0ppt
35%
Elevated avg
5.0ppb of 30.0ppb
17%
Detected avg
Copper 90th pct
0.11ppm of 1.30ppm
8%
Detected 90th pct
0.00pCi/L of 5.00pCi/L
0%
Detected avg

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
Arsenic6.1ppb10.0ppb MCL61%Elevated2025-08-13
Copper
90th percentile at home taps
note
0.11ppm1.30ppm AL8%Detected2025-12-31
Gross Alphanote27.4pCi/L15.0pCi/L MCL1.6xAbove limit2025-08-13
HFPO-DA (GenX)3.5ppt10.0ppt MCL35%Elevated2026-04-07
Lead
90th percentile at home taps
note
0.0ppb15.0ppb AL0%Not detected2025-12-31
Nitrate (as N)4.30ppm10.00ppm MCL43%Detected2026-04-07
PFHxSND10.0ppt MCLNDNot detected2026-04-07
Radium 226 + 2280.00pCi/L5.00pCi/L MCL0%Detected2025-08-13
Total TrihalomethanesND80.0ppb MCLNDNot detected2025-08-13
Uranium5.0ppb30.0ppb MCL17%Detected2025-08-13
  • Copper: 90th percentile of samples taken at customer taps. Results depend on the home's plumbing.
  • Gross Alpha: Compliance uses the running average of gross alpha minus uranium. Shown value is the highest lab result; the adjusted average is 24.05 pCi/L after subtracting 3.35 pCi/L for uranium.
  • 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.

6 other regulated contaminants tested
Contaminant36 mo maxLimitStatusLast sample
AtrazineND3.0ppbNot detected2025-08-13
BenzeneND5.0ppbNot detected2025-08-13
1,2-Dibromo-3-chloropropaneND0.2ppbNot detected2025-08-13
TetrachloroethyleneND5.0ppbNot detected2025-08-13
Sodium20.10ppmnoneDetected2025-08-13
TrichloroethyleneND5.0ppbNot detected2025-08-13

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 record2 violations on record, 0 health-based
2017
2018
2019
2020
2021
1 2022
2023
2024
2025
2026

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

No health-based violations (MCL, treatment technique, or disinfectant level) in the last ten years.

Monitoring and reporting violations (2)

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
2022Lead and Copper Rule1 (1 open)Follow-up or routine tap sampling (LCR)
2011Arsenic1Routine monitoring, major · Arsenic
Lead and copper at the tap90th percentile of sampled homes against the action level
Lead at customer taps
0.0ppb 90th percentile · action level 15.0ppb
0%
Not detected 5 homes sampled, 2023-01-01 to 2025-12-31

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
0.11ppm 90th percentile · action level 1.30ppm
8%
Detected 5 homes sampled, 2023-01-01 to 2025-12-31

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 from1 active wells

1 active well, and 0 treatment points on record (SDWIS counts each chlorination or filtration point as a treatment plant).

WELL #1: Susceptibility: ioc moderate, voc moderate, soc moderate, microbial moderate.

Source water assessment susceptibility: final map[IOC:Moderate Microbials:Moderate SOC:Moderate VOC:Moderate]; hydrologic sensitivity M; pci land use map[IOC:M Microbials:M SOC:M VOC:M]; system construction M;

Source names (1)

WELL #1

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 arsenic and nitrate (NSF/ANSI 58, pentavalent); manufacturer-reported for gross alpha, HFPO-DA, and uranium.

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

Certified forArsenic, Nitrate (as N)
Manufacturer-reported, not certifiedUranium, HFPO-DA (GenX), Radium 226 + 228, Gross Alpha
Also fits under sink ro · DIY

APEC ROES-50 Essence 5-Stage Reverse Osmosis

Manufacturer-reported reduction for gross alpha, arsenic, and HFPO-DA. Not NSF-certified for gross alpha, arsenic, and HFPO-DA.

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

Manufacturer-reported, not certifiedArsenic, Uranium, Nitrate (as N), HFPO-DA (GenX) and 3 more
Also fits under sink ro · DIY

iSpring RCC7AK 6-Stage Alkaline Reverse Osmosis

Manufacturer-reported reduction for gross alpha, arsenic, and HFPO-DA. Not NSF-certified for gross alpha, arsenic, and HFPO-DA.

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

Manufacturer-reported, not certifiedArsenic, Uranium, Nitrate (as N), HFPO-DA (GenX) and 2 more

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 Riley Trailer Park

Is Riley Trailer Park tap water safe to drink?

In the last 36 months at least one result for Riley Trailer Park was above a federal limit: Gross Alpha. 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 Riley Trailer Park water hard?

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

Is Riley Trailer Park water fluoridated?

No fluoride result in the last 36 months.

Where does Riley Trailer Park water come from?

Riley Trailer Park draws from 1 active well. Source and treatment details are listed above.

What filter fits Riley Trailer Park 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 Riley Trailer Park water?

Gross Alpha. 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: WARE, JOSHUA, 208-407-1985
  • DEQ Boise Regional Office, 1445 N Orchard St, Boise ID 83706, (208) 373-0550
  • Central District Health (well testing, septic, local health questions)

Sources

Sample results as of 2026-04-07; inventory and violations from EPA SDWIS; page built 2026-09-14. 28 individual results reviewed.

More: Ada County, Arsenic, HFPO-DA (GenX), Gross Alpha

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.