ZipCheckup grade for 83340: C.
A mixed picture - some signals here are worth your attention.
Your top priority: review your flood insurance coverage. Check your ZIP → FloodSmart
Ketchum, ID (83340): 28 Violations Recorded for Mapped Water Systems - 58/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Sun Valley Water and Sewer District)
EPA records for the water systems mapped to 83340 in Ketchum, ID contain 28 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 28 violations (non-health) (since 2021).
- Lead The reported 90th-percentile lead result of 0.004 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 148 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 83340. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
Score Breakdown
Overall Home Safety Score: 58/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (6) HIGH
Your Water System
ZIP code 83340 in Ketchum, Idaho is mapped to the water system Sun Valley Water and Sewer District (EPA ID: ID5070051). This system provides water to approximately 3,400 people from groundwater sources.
There are 3 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Sun Valley Water and Sewer District | ID5070051 | 3,400 | Groundwater |
| Cold Springs Subd | ID5070015 | 300 | Groundwater |
| City of Ketchum | ID5070028 | 3,555 | Groundwater |
Other Water Quality Reports in Idaho
- 83201 (Pocatello) - 3 violations recorded for mapped water systems
- 83202 (Pocatello) - 22 violations recorded for mapped water systems
- 83203 (Fort Hall)
- 83204 (Pocatello) - 3 violations recorded for mapped water systems
- 83205 (Pocatello)
- 83206 (Pocatello)
- 83209 (Pocatello) - 3 violations recorded for mapped water systems
- 83210 (Aberdeen)
- 83211 (American Falls) - 11 violations recorded for mapped water systems
- 83212 (Arbon)
- 83213 (Arco)
- 83214 (Arimo)
- 83215 (Atomic City)
- 83217 (Bancroft)
- 83218 (Basalt)
- 83220 (Bern)
- 83221 (Blackfoot) - 93 violations recorded for mapped water systems
- 83223 (Bloomington)
- 83226 (Challis)
- 83227 (Clayton)
Nearby Water Quality Reports
- 83353 (Sun Valley) - 8 mi - 28 violations recorded for mapped water systems
- 83354 (Sun Valley) - 10 mi
- 83333 (Hailey) - 13 mi - 26 violations recorded for mapped water systems
- 83322 (Corral) - 16 mi
- 83313 (Bellevue) - 20 mi
- 83327 (Fairfield) - 26 mi
- 83348 (Picabo) - 32 mi
- 83337 (Hill City) - 38 mi
- 83601 (Atlanta) - 40 mi
- 83320 (Carey) - 40 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Sun Valley Water and Sewer District (ID5070051) on EPA.gov.
3 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 83340 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Health Risks from Detected Contaminants
Radium-226
High RiskEPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)
Increased cancer risk, including bone cancer (known carcinogen)
At-risk groups: people who drink water with radium above the MCL over many years
Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →
Radium-228
High RiskEPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)
Increased cancer risk, including bone cancer (known carcinogen)
At-risk groups: people who drink water with radium above the MCL over many years
Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) MODERATE
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Ketchum
Based on local data for ZIP 83340, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Ketchum has 148 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 83340 was built around 1986. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 83340 safe to drink?
EPA SDWIS records 28 violations since 2021 across the water systems mapped to ZIP 83340 (primary system: Sun Valley Water and Sewer District), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 83340's water come from?
The recorded water source for Sun Valley Water and Sewer District, a system mapped to ZIP code 83340, is Groundwater. This system serves approximately 3,400 people.
How does Ketchum water compare to the national average?
Ketchum's Home Safety Score ranks lower than 85% of U.S. ZIP codes, and lower than 92% of ZIP codes within Idaho.
How can I get my water tested in Ketchum?
If Sun Valley Water and Sewer District supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 83340 tap water?
The Lead and Copper Rule record selected for 83340 reports a 90th-percentile lead result of 0.004 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 83340?
83340 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Blaine County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 83340?
FEMA records contain 148 flood insurance claims filed in ZIP code 83340; the recorded rated-zone value (the most frequent one if there are several claims) is X, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Ketchum, ID (83340): 28 Violations Recorded for Mapped Water Systems - 58/100. https://zipcheckup.com/report/83340/
@misc{zipcheckup-report-83340,
author = {{ZipCheckup}},
title = {{Ketchum, ID (83340): 28 Violations Recorded for Mapped Water Systems - 58/100}},
year = {2026},
url = {https://zipcheckup.com/report/83340/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 83340
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 83353 | Sun Valley, ID | 7.8 mi | C | 28 |
| 83354 | Sun Valley, ID | 9.7 mi | N/A | 0 |
| 83333 | Hailey, ID | 13.5 mi | C | 26 |
| 83322 | Corral, ID | 15.7 mi | N/A | 0 |
| 83313 | Bellevue, ID | 19.8 mi | N/A | 0 |
| 83327 | Fairfield, ID | 25.8 mi | N/A | 0 |
| 83348 | Picabo, ID | 31.9 mi | N/A | 0 |
| 83337 | Hill City, ID | 38.1 mi | N/A | 0 |
| 83601 | Atlanta, ID | 40.3 mi | N/A | 0 |
| 83320 | Carey, ID | 40.4 mi | N/A | 0 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings