Water Quality in Twin Falls, ID (83301)
EPA violation data for public water systems serving ZIP code 83301.
Active Health Violations
18 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 97% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
63,592
Population
103
Water Systems
111
Violations (5yr)
18
Health-Based
Location
Loading map...
Water Systems Serving This Area (103)
Twin Falls City Of
All resolved Groundwater 56,121 people served
4 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Jerome City Of
Groundwater 13,135 people served
1 violation (5yr)
Lead tested: 3 ppb (limit: 15 ppb) ✓
Lds Church Kimberly Sc
6 health-based Groundwater 659 people served
8 violations (5yr)
· 6 health-based · All resolved
Lds Church Murtaugh
Groundwater 451 people served
0 violations
Lds Church Pella
Groundwater 437 people served
0 violations
Lds Church Malta
Groundwater 431 people served
0 violations
Twin Falls City County Airport
Groundwater 410 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pine Dell Lds Lodge
All resolved Groundwater 400 people served
1 violation (5yr)
· All resolved
Chobani
All resolved Purchased groundwater 390 people served
5 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Lds Church View
Groundwater 383 people served
2 violations (5yr)
Lds Church Albion
All resolved Groundwater 253 people served
1 violation (5yr)
· All resolved
Glanbia Foods Inc
Groundwater 250 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb) ✓
Lazy J Mobile Home Ranch
Groundwater 225 people served
0 violations
Hollister City Of
All resolved Groundwater 220 people served
3 violations (5yr)
· All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓
Shoshone Falls Park Twin Falls
Groundwater 200 people served
0 violations
Usfs Diamond Field Jack
Groundwater 200 people served
0 violations
Usfs Stanley Lake Campground Sl 1
Groundwater 200 people served
0 violations
Oakley Stake Ranch Camp
Groundwater 200 people served
0 violations
Usfs Penstemon Picnic Ground
Groundwater 200 people served
0 violations
Lds Church Almo
Groundwater 192 people served
0 violations
Independent Meat Company
Groundwater 150 people served
0 violations
Usfs Pettit Campground
Groundwater 150 people served
0 violations
Meander Point Subd
2 health-based Groundwater 140 people served
4 violations (5yr)
· 2 health-based
Lds Church Elba
Groundwater 127 people served
0 violations
Usfs Redfish Point Campground
Groundwater 116 people served
0 violations
Usfs Alturas Inlet Campground
Groundwater 100 people served
0 violations
Usfs Big Smoky Guard Station
Groundwater 100 people served
0 violations
Usfs Steer Basin Hp
Groundwater 100 people served
0 violations
Usfs Father And Sons 2
Groundwater 100 people served
0 violations
Dierkes
All resolved Groundwater 100 people served
1 violation (5yr)
· All resolved
Usfs Father And Sons 1
Groundwater 100 people served
0 violations
Woodstone Retirement Center
Groundwater 98 people served
0 violations
Hilltop Adventist Church
1 health-based Groundwater 90 people served
6 violations (5yr)
· 1 health-based · All resolved
Malta Sr Seminary
All resolved Groundwater 80 people served
2 violations (5yr)
· All resolved
Heritage Manor
Groundwater 75 people served
0 violations
Tfrc Kids Zone
Groundwater 70 people served
0 violations
Magic Valley Resort Baja
Groundwater 65 people served
0 violations
Usfs Alturas Northshore
Groundwater 65 people served
0 violations
Usfs Smokey Bear Campground
Groundwater 60 people served
0 violations
Summer Homes Trailer Park
Groundwater 57 people served
0 violations
Usfs Harrington Fork 2
Groundwater 50 people served
0 violations
Murtaugh Lake Park
All resolved Groundwater 50 people served
2 violations (5yr)
· All resolved
Usfs Harrington Fork 1
Groundwater 50 people served
0 violations
Rock Creek Park Twin Falls County
1 health-based Groundwater 50 people served
13 violations (5yr)
· 1 health-based · All resolved
Boy Scout Center
Groundwater 50 people served
0 violations
Balanced Rock Park
All resolved Groundwater 50 people served
1 violation (5yr)
· All resolved
Oasis Stop N Go
All resolved Groundwater 50 people served
3 violations (5yr)
· All resolved
Centennial Waterfront Park
All resolved Groundwater 50 people served
1 violation (5yr)
· All resolved
Presbyterian Camp
Groundwater 50 people served
0 violations
Camp Roach Boy Scouts Camp
Groundwater 50 people served
0 violations
Twin Falls Christian Academy
Groundwater 50 people served
0 violations
Usfs Big Bluff Picnic Ground
Groundwater 42 people served
0 violations
Clearbrook Water Users Assn Inc
Groundwater 42 people served
0 violations
Usfs Father And Sons Campground
Groundwater 40 people served
0 violations
Beranna Dairy
Groundwater 35 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Magic Valley Living Center
Groundwater 35 people served
0 violations
Riverside Trailer Court
Groundwater 35 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Jim Leuze
Groundwater 34 people served
0 violations
Newell Water Users Assn
Groundwater 31 people served
0 violations
West Falls Avenue Trailer Park
Groundwater 30 people served
0 violations
Usfs,Garfield Guard Station
Groundwater 30 people served
0 violations
Usfs Bear Gulch Campground
Groundwater 30 people served
0 violations
Usfs Bostetter Campground
Groundwater 30 people served
0 violations
Sunridge Dairy
Groundwater 30 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Degroot Dairy
Groundwater 30 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Jim Leuze
Groundwater 26 people served
0 violations
Lds Church-Twin Falls
Groundwater 25 people served
0 violations
Berger Store And Court
Groundwater 25 people served
0 violations
Usfs Russian John Guard Station
Groundwater 25 people served
0 violations
Calvary Chapel Of Twin Falls
All resolved Groundwater 25 people served
1 violation (5yr)
· All resolved
Usfs Mount Heyburn Campground Mh 1
Groundwater 25 people served
0 violations
Highland View Water Company
Groundwater 25 people served
0 violations
Usfs Champion Creek Cabin
Groundwater 25 people served
0 violations
Jim Leuze
Groundwater 25 people served
0 violations
Good 2 Go Star Stop
All resolved Groundwater 25 people served
3 violations (5yr)
· All resolved
Canyon Springs Golf Course
Groundwater 25 people served
0 violations
Usfs Sawtooth Valley Work Center
Groundwater 25 people served
0 violations
Usfs Snyder Springs Picnic Ground
Groundwater 25 people served
0 violations
Nat Soo Pah
All resolved Groundwater 25 people served
2 violations (5yr)
· All resolved
Hollister Weigh Station
Groundwater 25 people served
0 violations
Mi Pueblo Bakery & Taqueria
6 health-based Groundwater 25 people served
13 violations (5yr)
· 6 health-based · All resolved
Usfs Schipper Picnic Ground
Groundwater 25 people served
0 violations
Usfs Stanley Lake Campground Sl 3
Groundwater 25 people served
0 violations
Tour Ice Of Magic Valley
Groundwater 25 people served
0 violations
Usfs Sawmill Campground
Groundwater 25 people served
0 violations
Idaho Heritage Museum
Groundwater 25 people served
0 violations
Usfs,Shake Creek Gs
Groundwater 25 people served
0 violations
Kum Ba Yah Church Camp
1 health-based Groundwater 25 people served
7 violations (5yr)
· 1 health-based
Usfs Dutchman Flat Campground
Groundwater 25 people served
0 violations
Usfs Malta Work Center
Groundwater 25 people served
0 violations
Usfs Sublett Guard Station
Groundwater 25 people served
0 violations
Camp Tawakani
1 health-based Groundwater 25 people served
10 violations (5yr)
· 1 health-based
Usfs Sheep Trail Campground
Groundwater 25 people served
0 violations
Jim Leuze
Groundwater 20 people served
0 violations
Usfs Tincup Horse Transfer (Pettit Lake)
All resolved Groundwater 10 people served
1 violation (5yr)
· All resolved
A Ok Campground
Groundwater 1 people served
0 violations
Beach & Grill, The
Groundwater 0
0 violations
Desert View Subd
Groundwater 0
0 violations
Owsley River Front Park
Groundwater 0
0 violations
Holister Port Of Entry Idt
Groundwater 0
0 violations
Canyon Rim Ymca
Groundwater 0
0 violations
Binky To Backpack Daycare
All resolved Groundwater 0
16 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Ground Round
Groundwater 0
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
56 violations
Has active
ArsenicHealth-Based
A naturally occurring element that can cause cancer and other health effects at high levels.
4 violations
All resolved
E. COLIMonitoring
14 violations
Has active
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
6 violations
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
4 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
3 violations
All resolved
LEAD AND COPPER RULE REVISIONSMonitoring
2 violations
Has active
Groundwater RuleMonitoring
2 violations
All resolved
Public NoticeMonitoring
1 violation
Has active
SeleniumMonitoring
1 violation
All resolved
NitriteMonitoring
Similar to nitrate — harmful to infants at high levels.
1 violation
All resolved
MercuryMonitoring
1 violation
All resolved
Thallium, TotalMonitoring
1 violation
All resolved
ChromiumMonitoring
1 violation
All resolved
NickelMonitoring
1 violation
All resolved
BariumMonitoring
1 violation
All resolved
CadmiumMonitoring
1 violation
All resolved
Antimony, TotalMonitoring
1 violation
All resolved
Beryllium, TotalMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
How Does This Compare?
Twin Falls (83301) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 111.
Fewer violations 97th percentile More violations
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.