Tap water quality for ZIP 83858

22 community water systems linked to this ZIP, largest first.

⚠ Some links below are based on the utility's mailing address, not its mapped service area, and may be approximate.

What this means for you in ZIP 83858

Is it safe to drink right now?
Based on the latest EPA data, Upper Twin Lakes Water Company Inc has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
Should I use a filter?
Optional. Nothing in this data strongly calls for one. Many people still filter for chlorine taste and odor.
What kind of filter?
For taste and odor (chlorine/chloramine), an NSF/ANSI 42 pitcher or faucet filter is enough. See matched standards and product picks.

This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.

Shown for the largest system linked to this ZIP. Check your water bill to confirm your provider.

Filters matched to Upper Twin Lakes Water Company Inc

FILTER PICKS

Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.

Lead

NSF/ANSI 53NSF/ANSI 58 (RO)
Aquasana Claryum 3-Stage Under Sink ~$280–350
Under-sink carbon filter; check its listing for lead and PFOA/PFOS claims.
View on Aquasana →
Check NSF listing · Not an affiliate link · disclosure
Waterdrop Undersink WD-UA ~$80–120
Undersink carbon block; verify the specific contaminant claims.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure
Waterdrop G3 / G3P600 RO ~$300–500
Tankless RO; RO broadly reduces nitrate, fluoride, arsenic and many PFAS — confirm the certificate lists yours.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure

Copper

NSF/ANSI 58 (RO)NSF/ANSI 53
Waterdrop G3 / G3P600 RO ~$300–500
Tankless RO; RO broadly reduces nitrate, fluoride, arsenic and many PFAS — confirm the certificate lists yours.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure
APEC Essence ROES-50 ~$220–230
Classic under-sink RO; confirm NSF/ANSI 58 certification for your model.
View on APEC →
Check NSF listing · Not an affiliate link · disclosure
Aquasana Claryum 3-Stage Under Sink ~$280–350
Under-sink carbon filter; check its listing for lead and PFOA/PFOS claims.
View on Aquasana →
Check NSF listing · Not an affiliate link · disclosure

Coliform/E. coli

NSF/ANSI 55 Class A (UV)Boil water notice—follow utility
Class A UV disinfection system ~$100–400
Only after any boil-water notice is lifted; UV does not remove chemicals.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure

Chlorine/chloramine taste

NSF/ANSI 42
Aquasana Clean Water Pitcher ~$35
Pitcher for chlorine taste/odor; check the NSF/ANSI 42 listing for the exact model.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure
Brita Elite Filter ~$20–40
Common faucet/pitcher option; confirm the 42 claim on the box.
View on Brita →
Check NSF listing · Not an affiliate link · disclosure

Annual water quality report

Utilities must publish a Consumer Confidence Report every year by July 1. Find it on the utility’s website or ask them directly; EPA explains how. · Full report →

Water systems for this ZIP

B

Upper Twin Lakes Water Company Inc

Serves 227 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A

East Greenacres Irrigation Dist

Serves 11,165 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A

City of Rathdrum

Serves 10,358 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
A

Twin Lakes Service Area

Serves 2,023 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A

Lone Mountain Estates

Serves 448 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Elkhorn Ranch

Serves 278 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Panhandle Mobile Estates

Serves 168 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A

Atlas Acres

Serves 160 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Hoyt Bluff Water Association

Serves 151 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Hayden Orchards Water System

Serves 122 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
C

Ohio Match Estates

Serves 118 people · Groundwater · Full report →
2 health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A

Panhandle Village Water System

Serves 105 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B

Lake Forest Homes Assn Inc

Serves 98 people · Groundwater · Full report →
No health-based violations in the last 5 years; 9 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
D

Ramsey Estates

Serves 88 people · Groundwater · Full report →
9 health-based violations in the last 5 years; 6 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Dry Acres Water and Sewer Dist

Serves 75 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Pine Haven Park

Serves 66 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).
A

East Seasons Acres

Serves 63 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Panhandle Mobile Home Park

Serves 50 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Seasons Road Water Assn

Serves 50 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2022).
A

Ranch Valley Water Assn

Serves 45 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Singer Ranch Water System

Serves 44 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A

Ashley Estates Water Assn

Serves 38 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
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