Skip to main content
WaterSafeCheck
EPA SDWIS City OverviewWater Testing & Safety Guide

Coeur D Alene, ID Water Quality Testing & Safety Report

EPA compliance records, water testing guidelines, and hardness metrics for all 3 ZIP codes in Coeur D Alene, Idaho

Quick EPA Verified Summary

Is Tap Water Safe to Drink in Coeur D Alene, ID?

Tap water in Coeur D Alene, ID receives an EPA Safety Grade of C (68/100) due to 0 health-based violation(s) and elevated lead risk. While treated by local utilities, residents are advised to test tap water and use an NSF/ANSI 53 certified filter for drinking and cooking.

Average Score

68/100

Health Violations

0

Water Hardness

Hard

160 mg/L (9.4 GPG)

High Lead Risk

1

of 3 ZIP codes

C

About Tap Water in Coeur D Alene, ID

Drinking water in Coeur D Alene, ID receives an average water quality grade of C (score: 68/100) across its 3 ZIP codes. Safe Drinking Water Act compliance monitoring is managed by local utilities including City of Coeur D Alene.

⚠ Lead Risk Alert: Some ZIP codes in Coeur D Alene are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Water Quality Testing in Coeur D Alene, ID

Tap Water & Well Water Testing Recommendations

Testing your drinking water in Coeur D Alene confirms whether contaminants like lead, nitrates, bacteria, and PFAS are entering your home. While municipal utilities test water before distribution, private plumbing and private well systems require homeowner testing.

Tap Water Testing Checklist

  • 1.Identify your plumbing age: Homes built before 1986 in Coeur D Alene may have lead solder or lead service lines.
  • 2.Request your utility's latest Consumer Confidence Report (CCR) for annual municipal baseline data.
  • 3.Use an EPA-certified laboratory or state-certified test kit for precision lead and PFAS detection (standard DIY strips cannot reliably measure trace heavy metals).
  • 4.Collect a "first draw" sample: Test water that has sat motionless in pipes for at least 6 hours to check for plumbing corrosion.

Private Well Water Testing Checklist

  • •Private wells in ID are not monitored by the EPA or Idaho Department of Environmental Quality — testing is 100% the homeowner's responsibility.
  • •Annual Test: Screen for Total Coliform Bacteria, E. coli, Nitrates/Nitrites, and pH every spring.
  • •Comprehensive Test (Every 3-5 Years): Test for heavy metals (Lead, Arsenic, Uranium), Volatile Organic Compounds (VOCs), and Hardness.
  • •Post-Disruption Testing: Immediately test well water following heavy floods, local construction, agricultural runoff, or sudden taste/odor changes.

Critical Water Testing Parameters for Coeur D Alene Residents

ParameterHealth ReasonEPA Limit / Standard
Lead (Pb)Plumbing corrosion; dangerous neurotoxin for children15 ppb (Action Level) / 0 ppb Goal
Total Coliform & E. ColiBacterial contamination from sewage or surface runoff0 mg/L (Zero Tolerance)
Nitrates / NitritesFertilizer and septic tank seepage; causes blue baby syndrome10 mg/L (MCL)
Water Hardness (Ca & Mg)Affects appliance lifespan, scale buildup, and skin hydrationHard (>120 mg/L)
PFAS ("Forever Chemicals")Industrial non-stick chemicals linked to metabolic and immune issues4.0 ppt (EPA 2024 Rule)
State Regulatory Oversight: Environmental standards and certified water lab registries in ID are maintained by the Idaho Department of Environmental Quality.

Water Quality by ZIP Code — Coeur D Alene, ID

Showing 3 of 3 monitored ZIP codes in Coeur D Alene

B
83815

Coeur D Alene, ID

Score: 70/100✓ Clean Record
B
83816

Coeur D Alene, ID

Score: 70/100✓ Clean Record
C
83814

Coeur D Alene, ID

Score: 65/100✓ Clean Record

All Coeur D Alene, ID ZIP Code Reports (3 Total)

838158381683814

Nearby Cities Water Quality & Testing in Idaho

Compare tap water safety, EPA test scores, and water hardness across neighboring cities in Idaho:

Aberdeen, ID1 ZIP code
Grade B
Albion, ID1 ZIP code
Grade B
Ahsahka, ID1 ZIP code
Grade C
Almo, ID1 ZIP code
Grade D
American Falls, ID1 ZIP code
Grade C
Arbon, ID1 ZIP code
Grade D
Arco, ID1 ZIP code
Grade C
Arimo, ID1 ZIP code
Grade C

Frequently Asked Questions — Coeur D Alene Water Quality & Testing

Is tap water safe to drink in Coeur D Alene, ID?+
Tap water in Coeur D Alene has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
How do I test water quality in Coeur D Alene, ID?+
To test water quality in Coeur D Alene, you can order an EPA-compliant drinking water test kit or submit samples to a state-certified environmental testing laboratory in ID. Testing is especially recommended for homes built before 1986 (to check for lead in plumbing) and for properties with private well systems.
Should I test private well water in Coeur D Alene?+
Yes. Unlike municipal tap water, private wells in Coeur D Alene, ID are not monitored or regulated by the EPA or local utilities. Private well owners are responsible for testing their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
How hard is the tap water in Coeur D Alene?+
Tap water in Coeur D Alene is classified as Hard with an estimated average hardness of 160 mg/L (9.4 GPG). Homeowners may want to consider a water softener to prevent scale buildup in appliances.
What is the water quality score for Coeur D Alene?+
The average water quality score across 3 ZIP codes in Coeur D Alene, ID is 68/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Coeur D Alene have lead in its tap water?+
1 out of 3 ZIP codes in Coeur D Alene are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
Where does Coeur D Alene's tap water come from?+
Tap water in Coeur D Alene, ID primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

Looking for water quality reports in other cities in Idaho?

View All Cities & ZIPs in Idaho