Water Quality in Thornton, CO (80260)

EPA violation data for public water systems serving ZIP code 80260.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

34,677

Population

13

Water Systems

253

Violations (5yr)

4

Health-Based

Location

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Water Systems Serving This Area (13)

Thornton City Of

All resolved
Surface water 226,465 people served
8 violations (5yr) · All resolved
Lead tested: 2.3 ppb (limit: 15 ppb) ✓

Westminster City Of

All resolved
Surface water 202,078 people served
3 violations (5yr) · All resolved
Lead tested: 1.3 ppb (limit: 15 ppb) ✓

South Adams County Wsd

Purchased surface water 74,341 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓

Brighton City Of

1 health-based
Purchased surface water 56,304 people served
1 violation (5yr) · 1 health-based · All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓

Northglenn City Of

Surface water 48,927 people served
0 violations
Lead tested: 1.7 ppb (limit: 15 ppb) ✓

Federal Heights City Of

Purchased surface water 11,678 people served
0 violations
Lead tested: 1.7 ppb (limit: 15 ppb) ✓

Woodland Hills Mhc

All resolved
Purchased surface water 1,740 people served
2 violations (5yr) · All resolved
Lead tested: 3 ppb (limit: 15 ppb) ✓

The Grove At Alta Ridge

1 health-based
Purchased surface water 1,300 people served
15 violations (5yr) · 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓

Friendly Village Of The Rockies

Purchased surface water 1,046 people served
3 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓

Pleasant View Estates

Purchased surface water 122 people served
2 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓

Suburban Estates Mhp

Purchased surface water 115 people served
2 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓

G And M Mobile Home Park

1 health-based
Groundwater 30 people served
80 violations (5yr) · 1 health-based
Lead tested: 0 ppb (limit: 15 ppb) ✓

Frontier Trailer Park

1 health-based
Groundwater 21 people served
137 violations (5yr) · 1 health-based · All resolved

Contaminants Found

TTHMHealth-Based
3 violations
Has active
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-Based
3 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

11 violations
All resolved
Surface Water Treatment RuleMonitoring
8 violations
All resolved
Public NoticeMonitoring
8 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

7 violations
Has active
Combined UraniumMonitoring
6 violations
All resolved
Combined Radium (-226 and -228)Monitoring
5 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
5 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
4 violations
All resolved
ChloramineMonitoring
3 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations
Has active
PentachlorophenolMonitoring
3 violations
All resolved
MercuryMonitoring
3 violations
All resolved
2,4,5-TPMonitoring
3 violations
All resolved
CadmiumMonitoring
3 violations
All resolved
BariumMonitoring
3 violations
All resolved
ChromiumMonitoring
3 violations
All resolved
DalaponMonitoring
3 violations
All resolved
Di(2-ethylhexyl) phthalateMonitoring
3 violations
All resolved
DinosebMonitoring
3 violations
All resolved
1,2-DichloroethaneMonitoring
3 violations
All resolved
BHC-GAMMAMonitoring
3 violations
All resolved
o-DichlorobenzeneMonitoring
3 violations
All resolved
ArsenicMonitoring

A naturally occurring element that can cause cancer and other health effects at high levels.

3 violations
All resolved
HEXACHLOROBENZENEMonitoring
3 violations
All resolved
p-DichlorobenzeneMonitoring
3 violations
All resolved
1,1,1-TrichloroethaneMonitoring
3 violations
All resolved
ETHYLENE DIBROMIDEMonitoring
3 violations
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

3 violations
All resolved
Carbon tetrachlorideMonitoring
3 violations
All resolved
NickelMonitoring
3 violations
All resolved
Total Polychlorinated Biphenyls (PCB)Monitoring
3 violations
All resolved
OXAMYLMonitoring
3 violations
All resolved
Benzo(a)pyreneMonitoring
3 violations
All resolved
Di(2-ethylhexyl) adipateMonitoring
3 violations
All resolved
1,1-DichloroethyleneMonitoring
3 violations
All resolved
LASSOMonitoring
3 violations
All resolved
SeleniumMonitoring
3 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
3 violations
All resolved
Xylenes, TotalMonitoring
3 violations
All resolved
DICHLOROMETHANEMonitoring
3 violations
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
3 violations
All resolved
AtrazineMonitoring
3 violations
All resolved
EthylbenzeneMonitoring
3 violations
All resolved
Beryllium, TotalMonitoring
3 violations
All resolved
1,1,2-TrichloroethaneMonitoring
3 violations
All resolved
HeptachlorMonitoring
3 violations
All resolved
PicloramMonitoring
3 violations
All resolved
EndrinMonitoring
3 violations
All resolved
CHLOROBENZENEMonitoring
3 violations
All resolved
DiquatMonitoring
3 violations
All resolved
StyreneMonitoring
3 violations
All resolved
ToxapheneMonitoring
3 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
3 violations
All resolved
BenzeneMonitoring
3 violations
All resolved
TetrachloroethyleneMonitoring
3 violations
All resolved
EndothallMonitoring
3 violations
All resolved
TrichloroethyleneMonitoring
3 violations
All resolved
Vinyl chlorideMonitoring
3 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
3 violations
All resolved
SimazineMonitoring
3 violations
All resolved
1,2-DichloropropaneMonitoring
3 violations
All resolved
MethoxychlorMonitoring
3 violations
All resolved
ChlordaneMonitoring
3 violations
All resolved
HexachlorocyclopentadieneMonitoring
3 violations
All resolved
TolueneMonitoring
3 violations
All resolved
Thallium, TotalMonitoring
3 violations
All resolved
FluorideMonitoring
3 violations
All resolved
Antimony, TotalMonitoring
3 violations
All resolved
Heptachlor epoxideMonitoring
3 violations
All resolved
2,4-DMonitoring
3 violations
All resolved
CarbofuranMonitoring
3 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
Has active
Stage 2 Disinfectants and Disinfection Byproducts RuleMonitoring

Monitoring for chemicals formed during water treatment disinfection.

1 violation
All resolved
NitriteMonitoring

Similar to nitrate — harmful to infants at high levels.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.3 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Thornton (80260) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 253.

Fewer violations 98th 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.

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

NSF Certified Products → EPA Safe Drinking Water Guide →

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.

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