Is Ririe, ID Tap Water Safe to Drink?
Graded A-, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
87.5/100
waterverge.com Ririe, ID — Water Quality Report
Ririe's drinking water received a grade of A- (87.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 656 residents using groundwater.
Lead levels were measured at 7.0 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 37 violations on record, including 8 health-based violations. 2 remain unresolved.
What to know about Ririe's water
Ririe ranks #38 out of 139 cities in Idaho for water quality, placing it mid-range in the state.
Ririe 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.
While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.
As a small community water system, Ririe may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Ririe, ID water safe to drink?
Ririe's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (87.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 656 residents using groundwater (wells).
Recent water quality updates for Ririe
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Ririe's water quality assessment. Grade: A- (87.5/100).
Contaminants: Chlorine.
Contaminants: Arsenic.
Federal disaster declaration (FEMA DR-4310). Flood event — may have impacted local water infrastructure.
Contaminants: Chlorine.
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 Ririe's water supply.
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.
Violation history
Ririe's water system has 37 total violations on record, including 8 health-based violations. 2 remain unresolved. 1 violation was issued in the last 5 years.
Flood & environmental risk
Jefferson County has experienced 3 federally declared disasters since 1976. 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 Snake River Nr Heise, Dry Bed Nr Ririe, Snake River, Willow Creek Nr Ririe, Sand Creek.
Where does Ririe's water come from?
Ririe's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 656 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Snake River Nr Heise (river), Dry Bed Nr Ririe (river), Snake River (river), Willow Creek Nr Ririe (river), Sand Creek (river).
What Ririe residents can do
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.
Ririe's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D2 — severe droughtJefferson County is currently in D2 (severe 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
Jefferson County has experienced 3 federally declared disasters since 1976. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Ririe's water supply, we recommend the following filter types.
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. | 7.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Ririe compares by contaminant
Explore where Ririe ranks among all Idaho cities for specific contaminants.
Water source & infrastructure
Where Ririe's water comes from
Ririe'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 656 people through 1 water system.
Water bodies near Ririe
Ririe is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Ririe
| System Name | PWSID | Population | Source |
|---|---|---|---|
| RIRIE CITY OF | ID7260034 | 656 | GW |
How Ririe compares
Full Idaho rankings →Ririe's score of 87.5/100 is above the average of 43/100 among major Idaho cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Idaho rankings →About Ririe, ID
Learn more about your water
Guides and resources related to Ririe's water quality findings.
Explore water quality across Jefferson
Frequently asked questions
Is Ririe, ID tap water safe to drink?
Ririe's water quality earned a grade of A- (87.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #38 out of 139 cities tested in Idaho.
What contaminants are in Ririe's water?
Lead was measured at 7.0 ppb (90th percentile). 37 violations are on record.
How is Ririe'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 Ririe?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Ririe's water come from?
Ririe's water is sourced from Groundwater. The city has 1 water system serving approximately 656 residents.
What health violations has Ririe's water system had?
Ririe has 8 health-based violations on record. The most recent violation was recorded in October 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Ririe's groundwater at risk of contamination?
Ririe 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 37 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 Ririe's water compare to other cities?
Ririe ranks #38 out of 139 cities in Idaho (better than 73% of state cities) and #4040 out of 15744 cities nationally (74th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Ririe's small water system affect quality?
Ririe's system serves approximately 656 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 37 violations on record.