Public water system profile

City of Grand Junction

Explore available public water records for City of Grand Junction (PWSID CO0139321). Find annual reports, results listed in those reports, official sources, and clear notes about what the records can and cannot show. This page does not show conditions at a specific tap.

View report rows

System Snapshot

Available system-level context

This snapshot shows the identity and context fields currently available for City of Grand Junction (PWSID CO0139321). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
CO0139321
State
Colorado
Linked communities
Grand Junction
County context
Not listed in current record
System type
Community water system
Source water
Surface water
Population served context
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2026 report link found
Data updated
2026-06-11

A source-backed population-served value is not currently shown for this system. City population should not be used as a substitute for the public water system population.

Read these as system-level fields from reviewed public records. Confirm provider and address-specific questions with official utility, city, state, or EPA sources.

Report-Listed Rows

Report-listed rows summarized from the latest reviewed report

50 report-listed rows are summarized for City of Grand Junction. A listed row is not the same thing as a current advisory or household tap result.

Report year
2026
Rows summarized
50
Source tables represented
7
Scope
Past reporting period
Report-row preview from the latest reviewed report for City of Grand Junction
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
ChlorineTesting period: November, 202597.5% %Lowest period percentage of samples meeting TT requirementNot listed in this summarized entryNot listed in this summarized entryDisinfectants Sampled in the Distribution SystemPage 7Typical source, as printed: Water additive used to control microbesTT Violation: No, as printed for this sample period
CopperTesting period: 07/02/2024 to 09/27/2024Sites above action level00.46 ppm90th PercentileTap Sample Range Low - High: 0.026 to 1Action level: 1.3; MCLG: not listedLead and Copper Sampled in the Distribution SystemPage 7Typical source, as printed: Corrosion of household plumbing systems; Erosion of natural deposits90th Percentile AL Exceedance: No, as printed for this sample period
LeadTesting period: 07/02/2024 to 09/27/2024Sites above action level38.2 ppb90th PercentileTap Sample Range Low - High: 0 to 23.5Action level: 15; MCLG: not listedLead and Copper Sampled in the Distribution SystemPage 7Typical source, as printed: Corrosion of household plumbing systems; Erosion of natural deposits90th Percentile AL Exceedance: No, as printed for this sample period
Total Haloacetic Acids (HAA5)Testing period: 202535.09 ppbAverageRange Low - High: 25.7 to 47.3MCL: 60; MCLG: N/ADisinfection Byproducts Sampled in the Distribution SystemPage 8Typical source, as printed: Byproduct of drinking water disinfectionMCL Violation: No, as printed for this sample period
Total Trihalomethanes (TTHM)Testing period: 202546.11 ppbAverageRange Low - High: 35.7 to 62.8MCL: 80; MCLG: N/ADisinfection Byproducts Sampled in the Distribution SystemPage 8Typical source, as printed: Byproduct of drinking water disinfectionMCL Violation: No, as printed for this sample period
TurbidityTesting period: Date/Month: Aug0.2 NTU NTUHighest single measurementNot listed in this summarized entryNot listed in this summarized entrySummary of Turbidity Sampled at the Entry Point to the Distribution SystemPage 8Typical source, as printed: Soil RunoffTT Violation: No, as printed for this sample period
TurbidityTesting period: Month: Dec100 % %Lowest monthly percentage of samples meeting TT requirement for our technologyNot listed in this summarized entryNot listed in this summarized entrySummary of Turbidity Sampled at the Entry Point to the Distribution SystemPage 8Typical source, as printed: Soil RunoffTT Violation: No, as printed for this sample period
ArsenicTesting period: 20250.44 ppbAverageRange Low - High: 0.44 to 0.44MCL: 10; MCLG: 0Inorganic Contaminants Sampled at the Entry Point to the Distribution SystemPage 9Typical source, as printed: Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastesMCL Violation: No, as printed for this sample period
BariumTesting period: 20250.04 ppmAverageRange Low - High: 0.04 to 0.04MCL: 2; MCLG: 2Inorganic Contaminants Sampled at the Entry Point to the Distribution SystemPage 9Typical source, as printed: Discharge of drilling wastes; discharge from metal refineries; erosion of natural depositsMCL Violation: No, as printed for this sample period
FluorideTesting period: 20250.06 ppmAverageRange Low - High: 0.06 to 0.06MCL: 4; MCLG: 4Inorganic Contaminants Sampled at the Entry Point to the Distribution SystemPage 9Typical source, as printed: Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factoriesMCL Violation: No, as printed for this sample period
NitrateTesting period: 20250.06 ppmAverageRange Low - High: 0.06 to 0.06MCL: 10; MCLG: 10Inorganic Contaminants Sampled at the Entry Point to the Distribution SystemPage 10Typical source, as printed: Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural depositsMCL Violation: No, as printed for this sample period
SodiumTesting period: 20259.52 ppmAverageRange Low - High: 9.52 to 9.52Not listed in this summarized entrySecondary ContaminantsPage 10Sample Size: 1; Secondary Standard: N/A.
CHROMIUM-6Testing period: 2014-20150.040 ug/LAverageRange Low - High: 0.000 - 0.060Not listed in this summarized entryUnregulated Contaminants***Page 12Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
STRONTIUMTesting period: 2014-2015134.65 ug/LAverageRange Low - High: 114.4 - 165.5Not listed in this summarized entryUnregulated Contaminants***Page 12Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
VANADIUMTesting period: 2014-20150.638 ug/LAverageRange Low - High: 0.449 - 0.763Not listed in this summarized entryUnregulated Contaminants***Page 12Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
CHLORATETesting period: 2014-2015151.1 ug/LAverageRange Low - High: 114.8 - 175.7Not listed in this summarized entryUnregulated Contaminants***Page 12Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
MANGANESETesting period: 20198.25 ug/LAverageRange Low - High: 2.5 - 14Not listed in this summarized entryUnregulated Contaminants***Page 12Sample Size: 2; Sampled at Entry Point of Distribution system (Treatment Plant).
LITHIUMTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 9.0; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
11CL-PF3OUDSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
4:2 FTSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
6:2 FTSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
8:2 FTSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
9CL-PF3ONSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 13Reportable Detection Limit: 0.0018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
ADONA / HFPO-DA / NFDHATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 14Reportable Detection Limit: 0.0027 / 0.0045 / 0.018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFBATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 14Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFBSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 14Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFDATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 14Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFDoATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 14Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFEESATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFHpATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFHpSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFHxATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFHxSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFMBATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFMPATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 15Reportable Detection Limit: 0.0036; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFPeSTesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0036; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFUnATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
NEtFOSAATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0050; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
NMeFOSAATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0060; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFTATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0080; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
PFTrDATesting period: 2024-2025ND ug/LAverageNot listed in this summarized entryNot listed in this summarized entryUnregulated Contaminants***Page 16Reportable Detection Limit: 0.0070; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).
CHROMIUM-6Testing period: 2014-20150.043 ug/LAverageRange Low - High: 0.000 - 0.069Not listed in this summarized entryUnregulated Contaminants***Page 16Sample Size: 4; Sampled in Distribution System.
STRONTIUMTesting period: 2014-2015135.1 ug/LAverageRange Low - High: 124.1 - 163.4Not listed in this summarized entryUnregulated Contaminants***Page 16Sample Size: 4; Sampled in Distribution System.
VANADIUMTesting period: 2014-20150.664 ug/LAverageRange Low - High: 0.443 - 0.818Not listed in this summarized entryUnregulated Contaminants***Page 16Sample Size: 4; Sampled in Distribution System.
CHLORATETesting period: 2014-2015152.4 ug/LAverageRange Low - High: 113.6 - 195.3Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 4; Sampled in Distribution System.
Bromochloroacetic AceticTesting period: 20191.71 ug/LAverageRange Low - High: 1.2 - 2.1Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 8; Sampled in Distribution System.
Bromodichloroacetic AcidTesting period: 20192.07 ug/LAverageRange Low - High: 1.7 - 2.3Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 8; Sampled in Distribution System.
Dichloroacetic AcidTesting period: 201914.375 ug/LAverageRange Low - High: 19 - 28Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 8; Sampled in Distribution System.
Trichloroacetic acidTesting period: 201924.75 ug/LAverageRange Low - High: 19 - 29Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 8; Sampled in Distribution System.
Total Organic CarbonTesting period: 20202000 ug/LAverageRange Low - High: 1800-2200Not listed in this summarized entryUnregulated Contaminants***Page 17Sample Size: 2; Sampled in Distribution System.

Report row

Chlorine

Range in report
Not listed in this summarized entry
Lowest period percentage of samples meeting TT requirement
97.5% %
Testing period
November, 2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
TT Violation: No, as printed for this sample period

Source · Page 7

Disinfectants Sampled in the Distribution System

Typical source, as printed: Water additive used to control microbes

Report row

Copper

Range in report
Tap Sample Range Low - High: 0.026 to 1 ppm
90th Percentile
0.46 ppm
Testing period
07/02/2024 to 09/27/2024
Sites above action level
0
Limit or standard
Action level: 1.3; MCLG: not listed
Report-printed status
90th Percentile AL Exceedance: No, as printed for this sample period

Source · Page 7

Lead and Copper Sampled in the Distribution System

Typical source, as printed: Corrosion of household plumbing systems; Erosion of natural deposits

Report row

Lead

Range in report
Tap Sample Range Low - High: 0 to 23.5 ppb
90th Percentile
8.2 ppb
Testing period
07/02/2024 to 09/27/2024
Sites above action level
3
Limit or standard
Action level: 15; MCLG: not listed
Report-printed status
90th Percentile AL Exceedance: No, as printed for this sample period

Source · Page 7

Lead and Copper Sampled in the Distribution System

Typical source, as printed: Corrosion of household plumbing systems; Erosion of natural deposits

Report row

Total Haloacetic Acids (HAA5)

Range in report
Range Low - High: 25.7 to 47.3 ppb
Average
35.09 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 60; MCLG: N/A
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 8

Disinfection Byproducts Sampled in the Distribution System

Typical source, as printed: Byproduct of drinking water disinfection

Report row

Total Trihalomethanes (TTHM)

Range in report
Range Low - High: 35.7 to 62.8 ppb
Average
46.11 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 80; MCLG: N/A
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 8

Disinfection Byproducts Sampled in the Distribution System

Typical source, as printed: Byproduct of drinking water disinfection

Report row

Turbidity

Range in report
Not listed in this summarized entry
Highest single measurement
0.2 NTU NTU
Testing period
Date/Month: Aug
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
TT Violation: No, as printed for this sample period

Source · Page 8

Summary of Turbidity Sampled at the Entry Point to the Distribution System

Typical source, as printed: Soil Runoff

Report row

Turbidity

Range in report
Not listed in this summarized entry
Lowest monthly percentage of samples meeting TT requirement for our technology
100 % %
Testing period
Month: Dec
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
TT Violation: No, as printed for this sample period

Source · Page 8

Summary of Turbidity Sampled at the Entry Point to the Distribution System

Typical source, as printed: Soil Runoff

Report row

Arsenic

Range in report
Range Low - High: 0.44 to 0.44 ppb
Average
0.44 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 10; MCLG: 0
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 9

Inorganic Contaminants Sampled at the Entry Point to the Distribution System

Typical source, as printed: Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

Report row

Barium

Range in report
Range Low - High: 0.04 to 0.04 ppm
Average
0.04 ppm
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 2; MCLG: 2
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 9

Inorganic Contaminants Sampled at the Entry Point to the Distribution System

Typical source, as printed: Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

Report row

Fluoride

Range in report
Range Low - High: 0.06 to 0.06 ppm
Average
0.06 ppm
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 4; MCLG: 4
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 9

Inorganic Contaminants Sampled at the Entry Point to the Distribution System

Typical source, as printed: Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Report row

Nitrate

Range in report
Range Low - High: 0.06 to 0.06 ppm
Average
0.06 ppm
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 10; MCLG: 10
Report-printed status
MCL Violation: No, as printed for this sample period

Source · Page 10

Inorganic Contaminants Sampled at the Entry Point to the Distribution System

Typical source, as printed: Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

Report row

Sodium

Range in report
Range Low - High: 9.52 to 9.52 ppm
Average
9.52 ppm
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 1; Secondary Standard: N/A.

Source · Page 10

Secondary Contaminants

Report row

CHROMIUM-6

Range in report
Range Low - High: 0.000 - 0.060 ug/L
Average
0.040 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 12

Unregulated Contaminants***

Report row

STRONTIUM

Range in report
Range Low - High: 114.4 - 165.5 ug/L
Average
134.65 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 12

Unregulated Contaminants***

Report row

VANADIUM

Range in report
Range Low - High: 0.449 - 0.763 ug/L
Average
0.638 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 12

Unregulated Contaminants***

Report row

CHLORATE

Range in report
Range Low - High: 114.8 - 175.7 ug/L
Average
151.1 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 12

Unregulated Contaminants***

Report row

MANGANESE

Range in report
Range Low - High: 2.5 - 14 ug/L
Average
8.25 ug/L
Testing period
2019
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 2; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 12

Unregulated Contaminants***

Report row

LITHIUM

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 9.0; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

11CL-PF3OUDS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

4:2 FTS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

6:2 FTS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

8:2 FTS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

9CL-PF3ONS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 13

Unregulated Contaminants***

Report row

ADONA / HFPO-DA / NFDHA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027 / 0.0045 / 0.018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 14

Unregulated Contaminants***

Report row

PFBA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0045; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 14

Unregulated Contaminants***

Report row

PFBS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 14

Unregulated Contaminants***

Report row

PFDA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 14

Unregulated Contaminants***

Report row

PFDoA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 14

Unregulated Contaminants***

Report row

PFEESA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFHpA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFHpS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFHxA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFHxS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFMBA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0027; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFMPA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0036; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 15

Unregulated Contaminants***

Report row

PFPeS

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0036; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

PFUnA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0018; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

NEtFOSAA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0050; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

NMeFOSAA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0060; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

PFTA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0080; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

PFTrDA

Range in report
Not listed in this summarized entry
Average
ND ug/L
Testing period
2024-2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Reportable Detection Limit: 0.0070; Sample Size: 4; Sampled at Entry Point of Distribution system (Treatment Plant).

Source · Page 16

Unregulated Contaminants***

Report row

CHROMIUM-6

Range in report
Range Low - High: 0.000 - 0.069 ug/L
Average
0.043 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled in Distribution System.

Source · Page 16

Unregulated Contaminants***

Report row

STRONTIUM

Range in report
Range Low - High: 124.1 - 163.4 ug/L
Average
135.1 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled in Distribution System.

Source · Page 16

Unregulated Contaminants***

Report row

VANADIUM

Range in report
Range Low - High: 0.443 - 0.818 ug/L
Average
0.664 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled in Distribution System.

Source · Page 16

Unregulated Contaminants***

Report row

CHLORATE

Range in report
Range Low - High: 113.6 - 195.3 ug/L
Average
152.4 ug/L
Testing period
2014-2015
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 4; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Report row

Bromochloroacetic Acetic

Range in report
Range Low - High: 1.2 - 2.1 ug/L
Average
1.71 ug/L
Testing period
2019
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 8; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Report row

Bromodichloroacetic Acid

Range in report
Range Low - High: 1.7 - 2.3 ug/L
Average
2.07 ug/L
Testing period
2019
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 8; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Report row

Dichloroacetic Acid

Range in report
Range Low - High: 19 - 28 ug/L
Average
14.375 ug/L
Testing period
2019
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 8; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Report row

Trichloroacetic acid

Range in report
Range Low - High: 19 - 29 ug/L
Average
24.75 ug/L
Testing period
2019
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 8; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Report row

Total Organic Carbon

Range in report
Range Low - High: 1800-2200 ug/L
Average
2000 ug/L
Testing period
2020
Sites above action level
Not applicable to this summarized entry
Limit or standard
Not listed in this summarized entry
Report-printed status
Sample Size: 2; Sampled in Distribution System.

Source · Page 17

Unregulated Contaminants***

Source report notes

Source: Grand Junction City of 2026 Drinking Water Quality Report. Retrieved 2026-08-13.

  • Applies to: Chlorine, Copper, Lead, Total Haloacetic Acids (HAA5), Total Trihalomethanes (TTHM), Turbidity, Arsenic, Barium, Fluoride, Nitrate, Sodium, CHROMIUM-6, STRONTIUM, VANADIUM, CHLORATE, MANGANESE, LITHIUM, 11CL-PF3OUDS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9CL-PF3ONS, ADONA / HFPO-DA / NFDHA, PFBA, PFBS, PFDA, PFDoA, PFEESA, PFHpA, PFHpS, PFHxA, PFHxS, PFMBA, PFMPA, PFPeS, PFUnA, NEtFOSAA, NMeFOSAA, PFTA, PFTrDA, Bromochloroacetic Acetic, Bromodichloroacetic Acid, Dichloroacetic Acid, Trichloroacetic acid, Total Organic Carbon

    Source-printed values are preserved without inferring current status, compliance, or household conditions.

Review the linked source report for definitions, footnotes, and official wording.

Violation Records

Violation records shown on this page

This section shows 0 system-scoped violation detail records currently included for City of Grand Junction. Annual reports and current notices can use different timing and terminology.

No system-scoped violation detail records are included in the available reviewed records for this system. This is not an official compliance finding. Check the official utility, state, or EPA source for current compliance and notice information.

Important limitation

Profile summary note

This page summarizes public records reviewed by this site. It does not replace official notices, utility updates, or state drinking water information.

System profile limitations

  • This record is based on official City of Grand Junction water-quality sources reviewed on June 11, 2026.
  • The city publishes a separate Kannah Creek report; this record uses the Grand Junction City of report only.
  • Population served is omitted until a current source-backed public-water-system inventory value is listed.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • This page may show summarized entries from available annual reports. It does not include a complete historical contaminant table.
  • This page shows summarized entries from the available report. It does not include a complete contaminant or violation table.
  • Missing fields are not findings. They mean the field is not shown on this page from the records currently available.
  • This page summarizes available public records. It may not include every update, notice, or urgent official advisory.

Latest Reviewed Report

Latest reviewed report found by this site

The 2026 report found for City of Grand Junction summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2026 Drinking Water Quality Report

Open 2026 water quality report

The 2026 report link is available for City of Grand Junction. Use the linked source report for the full table, definitions, footnotes, and official context. This page includes summarized entries from the available report. They are not a complete copy of the report table.

Report year
2026
Summarized entries shown
50
Source name
Grand Junction City of 2026 Drinking Water Quality Report
Source URL
Open report source
Source retrieved
2026-08-13
Last reviewed
2026-08-13

Use the linked source report for the full table, definitions, footnotes, and official context.

Data coverage

This page summarizes selected public records for this public water system. It may not include every report, update, current notice, or address-level service detail.

Latest reviewed report
2026 report link found
Report-listed rows
50 summarized report entries shown
Detailed violation records
No detailed system-scoped records displayed
Population served
Not listed in current record
Service connections
Not listed in current record
City context
Grand Junction
County context
Not listed in current record

Local Context

City and state context for this system

City of Grand Junction is linked here to Grand Junction for navigation. That relationship does not confirm the provider for a specific address; use a bill, utility portal, or official lookup source.

Linked local context

Linked communities
Grand Junction
County context
Not listed in current record
State context
Colorado

Related Explainers

Related contaminants and guides

Use these explainers with City of Grand Junction's report year, source table, and official report. Links are limited to existing guide and contaminant pages.

Metals and inorganic chemicals

Nitrate

Nitrate is a regulated inorganic contaminant. Report labels often specify that the result is measured as nitrogen, and that basis must remain attached to the value and unit.

Read the Nitrate contaminant guide

How to look up your drinking water system

Start with a utility bill, PWSID, state lookup tool, or official report so you can find the public water system behind a city or provider name.

View How to look up your drinking water system

How to read a water quality report

A plain-English walkthrough of Consumer Confidence Reports, including report years, detected contaminants, legal limits, violations, and source notes.

View How to read a water quality report

Corrections

Suggest a correction or newer source

If you have a newer official report, utility source, or correction, send the source link for review. This helps keep profile summaries tied to public records.

Suggest an update

Evidence

Official sources and report links

Use official federal, state, utility, or report sources before treating a page as final.

Data methodology

Review source hierarchy, missing-data handling, and record limitations.

View Data methodology

Data limitations

See why limited records, missing fields, and current notices need careful interpretation.

View Data limitations