Is Kimberly, ID Tap Water Safe to Drink?
Graded B+, with 10 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
81.9/100
waterverge.com Kimberly, ID — Water Quality Report
Kimberly's drinking water received a grade of B+ (81.9 out of 100), indicating good water quality. The city's 2 water systems serve approximately 5,429 residents using groundwater.
Lead levels were measured at 4.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 91 violations on record, including 10 health-based violations. 10 remain unresolved.
What to know about Kimberly's water
Kimberly ranks #53 out of 139 cities in Idaho for water quality, placing it mid-range in the state.
Kimberly relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
Water quality score
See methodology →Is Kimberly, ID water safe to drink?
Kimberly's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 5,429 residents using groundwater (wells).
Recent water quality updates for Kimberly
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Kimberly's water quality assessment. Grade: B+ (81.9/100).
Contaminants: LEAD AND COPPER RULE REVISIONS.
Contaminants: Nitrate.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4310). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3244). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Kimberly's water supply.
Well within EPA limits.
Violation history
Kimberly's water system has 91 total violations on record, including 10 health-based violations. 10 remain unresolved. 4 violations were issued in the last 5 years.
Flood & environmental risk
Twin Falls County has experienced 2 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Devils Washbowl Spring Nr Kimberly 10S 18E 04Aad1S, Snake River Nr Kimberly, Snake River Nr Twin Falls, Rock Creek Ab Hwy 30/93 Xing.
Where does Kimberly's water come from?
Kimberly's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 5,429 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Devils Washbowl Spring Nr Kimberly 10S 18E 04Aad1S (river), Snake River Nr Kimberly (river), Snake River Nr Twin Falls (river), Rock Creek Ab Hwy 30/93 Xing (river).
What Kimberly residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Kimberly's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Kimberly
Industrial polluters nearby
Reported releases to surface water by facilities near Kimberly, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
LAMB WESTON INC TWIN FALLS, ID83301 | — | — | 5.8 mi |
AMALGAMATED SUGAR CO TWIN FALLS, ID83301 | — | — | 3.2 mi |
GLANBIA FOODS INC TWIN FALLS, ID83301 | — | — | 5.6 mi |
CHOBANI IDAHO TWIN FALLS, ID83301 | — | — | 3.4 mi |
LIPPERT COMPONENTS - TWIN FALLS #64 TWIN FALLS, ID83301 | — | — | 2.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D3 — extreme droughtCassia County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Twin Falls County has experienced 2 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 4.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Kimberly compares by contaminant
Explore where Kimberly ranks among all Idaho cities for specific contaminants.
Water source & infrastructure
Where Kimberly's water comes from
Kimberly's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 5,429 people through 2 water systems.
Water bodies near Kimberly
Kimberly is located near 4 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Kimberly
| System Name | PWSID | Population | Source |
|---|---|---|---|
| KIMBERLY CITY OF | ID5420033 | 5,359 | GW |
| NIELSONS COUNTRY COURT | ID5160032 | 70 | GW |
How Kimberly compares
Full Idaho rankings →Kimberly's score of 81.9/100 is above the average of 43/100 among major Idaho cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Idaho rankings →About Kimberly, ID
Learn more about your water
Guides and resources related to Kimberly's water quality findings.
Explore water quality across Twin Falls
Frequently asked questions
Is Kimberly, ID tap water safe to drink?
Kimberly's water quality earned a grade of B+ (81.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #53 out of 139 cities tested in Idaho.
What contaminants are in Kimberly's water?
Lead was measured at 4.0 ppb (90th percentile). 91 violations are on record.
How is Kimberly's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Kimberly?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Kimberly's water come from?
Kimberly's water is sourced from Groundwater. The city has 2 water systems serving approximately 5,429 residents.
What health violations has Kimberly's water system had?
Kimberly has 10 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 10 violations remain unresolved.
Is Kimberly's groundwater at risk of contamination?
Kimberly uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 91 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Kimberly's water compare to other cities?
Kimberly ranks #53 out of 139 cities in Idaho (better than 62% of state cities) and #7243 out of 15744 cities nationally (54th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.