Water Quality in Anchorage, AK (99503)
EPA violation data for public water systems serving ZIP code 99503.
Active Health Violations
29 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 99% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
12,964
Population
136
Water Systems
296
Violations (5yr)
29
Health-Based
Location
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Water Systems Serving This Area (136)
Moa Municipality Of Anchorage
All resolved Surface water 221,351 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Jber-Elmendorf
Purchased surface water 30,003 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Bob Smith
Groundwater 21,320 people served
0 violations
Doyon Utilities Jber - Richardson
All resolved Surface water 20,284 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Prudhoe Bay Opt. Center
1 health-based Surface water 1,200 people served
4 violations (5yr)
· 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
King Cove
4 health-based Groundwater 972 people served
9 violations (5yr)
· 4 health-based · All resolved
Worley Water Truck #30032
All resolved Purchased surface water 770 people served
6 violations (5yr)
· All resolved
Worley Water Truck #30031
All resolved Purchased surface water 770 people served
5 violations (5yr)
· All resolved
Worley Water Truck #30033
All resolved Purchased surface water 770 people served
6 violations (5yr)
· All resolved
Worley Water Truck #30030
All resolved Purchased surface water 770 people served
6 violations (5yr)
· All resolved
Pboc Potable Water Truck #34-008
Purchased surface water 700 people served
0 violations
Pboc Water Truck #34-017
Purchased surface water 600 people served
0 violations
Alyeska - Atigun Reroute Camp
Groundwater 500 people served
0 violations
Worely Water Tanker #30028
Purchased surface water 500 people served
0 violations
Alaska Brands Wts
Purchased surface water 500 people served
0 violations
Cwtf Water Truck 34-011
Purchased surface water 490 people served
0 violations
Worley Water Tanker #30026
Purchased surface water 480 people served
0 violations
Worley Water Tanker #30024
Purchased surface water 480 people served
0 violations
Hilcorp North Slope Llc Exploration Cwtf
Surface water 475 people served
0 violations
Wendy'S Old Seward
3 health-based Groundwater 415 people served
16 violations (5yr)
· 3 health-based
Clear Afs Asrc Lrdr Temp. Camp
1 health-based Groundwater 320 people served
22 violations (5yr)
· 1 health-based · All resolved
Milne Point Unit - Hilcorp
2 health-based Surface water 300 people served
2 violations (5yr)
· 2 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Mun Of Anch Water & Wastewater
Groundwater 300 people served
0 violations
Hilcorp Water Haul Trailer -1208
All resolved Purchased groundwater 300 people served
1 violation (5yr)
· All resolved
Water Truck 34-016
Purchased surface water 290 people served
0 violations
Worley Water Truck #85075
Purchased surface water 250 people served
0 violations
Moa Knik View Estates
Groundwater 238 people served
0 violations
Hilcorp Oliktok/Opp & Nikaitchuq/Noc
All resolved Groundwater 220 people served
21 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Parkwood Inn
Groundwater 210 people served
0 violations
Qiruk Camp - Pt Op Center
Surface water 200 people served
0 violations
Ptu Roll On/Off, Raw/Potable Haul
All resolved Purchased surface water 200 people served
1 violation (5yr)
· All resolved
Rivers Edge Condominium
Groundwater 168 people served
2 violations (5yr)
Worley Truck #85066
Purchased surface water 150 people served
0 violations
Cook Inlet Processors Uganik
Surface water 150 people served
0 violations
Hilcorp Milne Pt Potable Haul Truck
Purchased surface water 130 people served
0 violations
Hilcorp Rig Tenders Well #3
All resolved Groundwater 125 people served
2 violations (5yr)
· All resolved
Lead tested: 2.91 ppb (limit: 15 ppb) ✓
Alaska Aerospace Corporation
Groundwater 125 people served
0 violations
Greenbrook S/D
1 health-based Groundwater 123 people served
2 violations (5yr)
· 1 health-based · All resolved
Lead tested: 1.9 ppb (limit: 15 ppb) ✓
Hilcorp Spy Island Ds
Groundwater 120 people served
0 violations
Eaglecrest Condos Assn.
All resolved Groundwater 120 people served
1 violation (5yr)
· All resolved
Creekwood Inn And Rv Park
1 health-based Groundwater 107 people served
4 violations (5yr)
· 1 health-based · All resolved
Tom Thumb Montessori School
Groundwater 102 people served
0 violations
Sunridge Apartments
Groundwater 100 people served
0 violations
The Water Guy
All resolved Purchased surface water 100 people served
4 violations (5yr)
· All resolved
Kea Terror Lake- Kiewit 50 Man Camp
Groundwater 100 people served
0 violations
Green Acres Tc
Groundwater 96 people served
0 violations
Lead tested: 0.9 ppb (limit: 15 ppb) ✓
Oooguruk Offshore Production & Drilling
All resolved Groundwater 95 people served
22 violations (5yr)
· All resolved
Lead tested: 2.64 ppb (limit: 15 ppb) ✓
Fork & Spoon Restaurant
Groundwater 94 people served
0 violations
Northstar Development - Hilcorp
Surface water 94 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Hilcorp Trading Bay
Groundwater 93 people served
0 violations
Sa Exploration 334124
Surface water 90 people served
0 violations
Badami - Savant
All resolved Surface water 84 people served
2 violations (5yr)
· All resolved
Bornite Camp
Groundwater 80 people served
0 violations
Endicott - Hilcorp
Purchased surface water 77 people served
0 violations
Lead tested: 1.03 ppb (limit: 15 ppb) ✓
Nabors Drilling Alaska Camp (14e)
Purchased surface water 76 people served
0 violations
Meridian Center
Groundwater 75 people served
0 violations
Adriatic 8
Surface water 75 people served
0 violations
Hilcorp Monopod Platform
Purchased groundwater 74 people served
0 violations
Aac Co.
Surface water 70 people served
0 violations
So Commercial Cntr Condos
Groundwater 70 people served
0 violations
Nabors Camp 4es
Purchased surface water 60 people served
0 violations
Windy Bay Logging Camp
Groundwater 60 people served
0 violations
Espresso Expressions
All resolved Groundwater 52 people served
2 violations (5yr)
· All resolved
Hilcorp Anna Platform
Purchased groundwater 52 people served
0 violations
Hilcorp Tyonek Platform
Purchased groundwater 50 people served
0 violations
Cruz Construction Skid/Taku Camp #1
Purchased surface water 50 people served
0 violations
Oriental Shopping Center
Groundwater 50 people served
0 violations
Soldier Creek Corporation
Groundwater 50 people served
0 violations
China Gardens
Groundwater 50 people served
0 violations
U-Haul Company Of Alaska
Groundwater 50 people served
0 violations
Franklin Bluffs Temp. Camp
Purchased surface water 50 people served
0 violations
Mat-Su Brew & Bites
Groundwater 50 people served
1 violation (5yr)
Hilcorp Grayling Platform
Purchased groundwater 50 people served
0 violations
Home Environment Center
Purchased surface water 50 people served
0 violations
Chenega
15 health-based Surface water 50 people served
86 violations (5yr)
· 15 health-based
Lead tested: 1.54 ppb (limit: 15 ppb) ✓
Asrc /Alyeskavmt Trailer 237-025
Purchased surface water 48 people served
0 violations
Hilcorp Bruce Platform
Purchased groundwater 48 people served
0 violations
Cooper Landing Brewing
All resolved Groundwater 46 people served
22 violations (5yr)
· All resolved
Hilcorp Dolly Varden Platform
Purchased groundwater 43 people served
0 violations
Nabors Camp 22e / Rig 26e
Purchased surface water 41 people served
0 violations
Hilcorp King Salmon Platform
Purchased groundwater 40 people served
0 violations
Nabors Alaska Aleutian (3a)
Purchased surface water 40 people served
0 violations
Estell S/D, Lot 2
Groundwater 40 people served
0 violations
Ak United Drill Rig #2
Surface water 40 people served
0 violations
Iliamna Lake Resort & Condos
Groundwater 38 people served
0 violations
Kenai Gas Field
All resolved Groundwater 35 people served
10 violations (5yr)
· All resolved
Lead tested: 9.4 ppb (limit: 15 ppb) ✓
Nabors Camp 18e
Purchased surface water 35 people served
0 violations
Hilcorp Alaska, Llc Beluga River Camp
All resolved Groundwater 31 people served
1 violation (5yr)
· All resolved
Western Arctic Coal-Bhp Exp. Camp
Surface water 30 people served
0 violations
Whitehall Tom Thumb Montessori
Groundwater 30 people served
0 violations
Nye Ford - Auto Max
Groundwater 30 people served
0 violations
Donlin Gold Camp
All resolved Groundwater 30 people served
2 violations (5yr)
· All resolved
Hamlet Apts
Groundwater 28 people served
0 violations
Glenwood Arms Apartments
Groundwater 26 people served
0 violations
Worley Truck #85062
All resolved Purchased surface water 25 people served
1 violation (5yr)
· All resolved
Hilcorp Granite Point Platform
Surface water 25 people served
0 violations
Barrier Free Beach Lk Camp
Groundwater 25 people served
0 violations
Hilcorp Steelhead Platform
Purchased groundwater 25 people served
0 violations
Kranberry Hills Add 1
Groundwater 25 people served
0 violations
The Oasis Rivers Edge Resort
All resolved Groundwater 25 people served
2 violations (5yr)
· All resolved
Nordic Calista Camp #4
Purchased surface water 24 people served
0 violations
Nabors Alaska Alyeska Camp
Purchased surface water 24 people served
0 violations
Nabors Alaska Yukon Camp
Purchased surface water 24 people served
0 violations
Nabors Camp Kuskokwim (4)
Purchased surface water 24 people served
0 violations
Nabors Camp Chugach (27e)
Purchased surface water 24 people served
0 violations
Nabors Camp Brooks (28e)
Purchased surface water 24 people served
0 violations
Nabors Camp Wrangell (26e)
Purchased surface water 24 people served
0 violations
Atigun Camp Alpha - Delta Leasing
Purchased surface water 24 people served
0 violations
Halliburton Services Deadhorse
Purchased surface water 24 people served
0 violations
Nordic Calista Camp #5
Purchased surface water 24 people served
0 violations
Doyon Drilling Rig #16 Camp
Purchased surface water 24 people served
0 violations
Anadarko Akita 63 Rig Camp
Purchased surface water 24 people served
0 violations
Nabors Alaska Augustine Camp
Purchased surface water 24 people served
0 violations
Nabors Drilling Camp Kenai
Purchased surface water 24 people served
0 violations
Nabors Camp Talkeetna (6)
Purchased surface water 24 people served
0 violations
Sa Exploration 334132
Surface water 24 people served
0 violations
Alutiiq Manufacturing Contractors
Groundwater 24 people served
0 violations
Nabors Mckinley Camp
Surface water 24 people served
0 violations
Alaska West Kanektok River Camp
1 health-based Groundwater under influence of surface water 20 people served
16 violations (5yr)
· 1 health-based · All resolved
Uic Umiat Camp
Surface water 18 people served
0 violations
Spenard Heights Subdivision
Groundwater 17 people served
0 violations
Big Lake Resort Condominium Assoc
Groundwater 14 people served
0 violations
King Salmon Mall
All resolved Groundwater 13 people served
10 violations (5yr)
· All resolved
Anyaraqmuite Office Building
Groundwater under influence of surface water 10 people served
0 violations
Alaska Glacier Products
Purchased surface water 10 people served
0 violations
Togiak Wildlife Refuge
Groundwater 10 people served
0 violations
Ch2m Hill Shop & Offices
Purchased surface water 10 people served
0 violations
Soa Employee Housing Mcgrath
Groundwater 8 people served
0 violations
Olsen'S
Groundwater 5 people served
0 violations
Wilson Street Well
Groundwater 4 people served
0 violations
I -Cook Inlet Pipeline Drift Rvr
Groundwater 0
0 violations
I - Veco Water Delivery Service
Purchased surface water 0
0 violations
Westside Center
Groundwater 0
0 violations
Asrc/Aes Water Tank 237-024
Purchased surface water 0
0 violations
Sr Wasilla Llc
Groundwater 0
0 violations
Atigun Camp Beta - Delta Leasing
Purchased surface water 0
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
101 violations
Has active
Surface Water Treatment RuleHealth-Based
40 violations
All resolved
Total Haloacetic Acids (HAA5)Health-Based
9 violations
Has active
Interim Enhanced Surface Water Treatment RuleHealth-Based
8 violations
All resolved
TTHMHealth-Based
6 violations
Has active
Groundwater RuleHealth-Based
4 violations
Has active
LEAD AND COPPER RULE REVISIONSHealth-Based
1 violation
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
29 violations
All resolved
E. COLIMonitoring
11 violations
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
6 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
5 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
4 violations
All resolved
1,1,2-TrichloroethaneMonitoring
3 violations
All resolved
DICHLOROMETHANEMonitoring
3 violations
All resolved
1,2-DichloropropaneMonitoring
3 violations
All resolved
TetrachloroethyleneMonitoring
3 violations
All resolved
o-DichlorobenzeneMonitoring
3 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
3 violations
All resolved
StyreneMonitoring
3 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
3 violations
All resolved
1,2-DichloroethaneMonitoring
3 violations
All resolved
CHLOROBENZENEMonitoring
3 violations
All resolved
TrichloroethyleneMonitoring
3 violations
All resolved
EthylbenzeneMonitoring
3 violations
All resolved
Xylenes, TotalMonitoring
3 violations
All resolved
1,1-DichloroethyleneMonitoring
3 violations
All resolved
Carbon tetrachlorideMonitoring
3 violations
All resolved
p-DichlorobenzeneMonitoring
3 violations
All resolved
1,1,1-TrichloroethaneMonitoring
3 violations
All resolved
Vinyl chlorideMonitoring
3 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
3 violations
All resolved
BenzeneMonitoring
3 violations
All resolved
TolueneMonitoring
3 violations
All resolved
Public NoticeMonitoring
2 violations
All resolved
CARBON, TOTALMonitoring
1 violation
All resolved
ArsenicMonitoring
A naturally occurring element that can cause cancer and other health effects at high levels.
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
How Does This Compare?
Anchorage (99503) has more violations than 99% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 296.
Fewer violations 99th 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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.