Water Quality Report

Water Quality Reports / Consumer Confidence Reports (CCRs) provide the public with regular assurance of potable water quality standards as established and maintained by the US Environmental Protection Agency (USEPA) and the Alaska Department of Environmental Conservation (ADEC). The CBJ also conducts spot and routing monitoring of its water production and distribution systems for operational control and maintenance protocols.

Download Report

2023 Water Quality Report

2023 Annual Water Quality Report

Protect Your Water:

Pick Up Pet Waste

Pet waste pollutes waterways with bacteria and excess nutrients. All pets must be leashed in the watershed areas.

Respectful Recreation

Camping, shooting, recreational mining (except gold panning) and any hazardous substances are prohibited within the watershed boundaries.

Report Suspicious Activity

Call the Utilities Division at (907) 586-0393 if you see suspicious activity in or around our water sources or reservoirs.

Get Educated

Contact the Utilities Division if you’d like more information or a tour of our facilities.

Sign Up for Paperless Billing

Help the Utility conserve resources by receiving your bill by email! Sign up at www.bit.ly/cbj-paperless.

Headshot of Denise Koch, Engineering & Public Works Director
Denise Koch, Engineering & Public Works Director

CBJ’s Utility staff maintains the critical infrastructure that delivers delicious high-quality drinking water to Juneau residents and visitors year after year. It’s such an essential and reliable service that most of us rarely think about the treatment facilities, constantly evolving regulations, and 175 miles of distribution lines the Utility monitors, maintains, and updates every day. The next time you turn on your faucet, consider raising a glass to the team behind the tap – cheers!

– Denise Koch, Engineering & Public Works Director

Your Water. Your Report.

Per the United States Environmental Protection Agency’s (EPA) National Primary Drinking Water Regulations, all drinking water suppliers are required to provide the public with an annual statement describing the community’s water supply and quality. The belief at the City & Borough of Juneau is that our local water resource is your water, and it is the Utility’s job to protect its purity and deliver it safely so that is clean and delicious for all residents, visitors, and businesses.

Juneau’s drinking water comes from groundwater and surface water sources. The primary water source is the Last Chance Basin (LCB) wellfield located in the Gold Creek watershed; it provides roughly two-thirds of Juneau’s water. Surface water, collected at the Salmon Creek (SC) Reservoir, comes from snowmelt and rainfall. This is Juneau’s secondary water source and supplies about one-third of the drinking water demand.

Juneau’s water requires very little treatment compared to the rest of the United States. Both sources are gently chlorinated to kill any disease causing microorganisms that may be present. As required by the EPA, all surface water is also run through an additional filtration unit.

The CBJ Utility regularly monitors its waters for contaminants, including lead, which have been known to adversely affect water quality in other communities. In the fall of 2022, the reservoir tanks were inspected and cathodic protection systems repairs were made at each reservoir to prevent internal corrosion. Additionally, divers were employed to clean the sediment on the bottom of the tanks. Rigorous monitoring and maintenance programs like these have allowed CBJ to consistently deliver water that meets and exceeds drinking water standards as set by the EPA.

Drinking Water Monitoring & Test Results

Measured Before Treatment

Test Units Max Contaminant Level Max Contaminant Level Goal Last Chance Basin Salmon Creek Date Sampled Source of Contaminant
Turbidity NTU 0.3 0 N/A 0.11 avg
0.031 max
Continuous Turbidity data is recorded post filtration
Arsenic mg/L 0.01 0 <0.001 <0.001 2022* Erosion of Natural Deposits
Barium mg/L 2 2 0.047 0.024 2022* Erosion of Natural Deposits
Fluoride mg/L 4 4 <0.1 <0.1 2022* Naturally present in the environment (CBJ has not added fluoride since Jan. 2007)
Nitrate (as Nitrogen) mg/L 10 10 0.33 <0.1 2023 Fertilizer runoff; sewage leaching; erosion of natural deposits
Selenium mg/L 0.05 0.05 <0.002 <0.002 2015* Erosion of natural deposits
Alpha Particles pCi/L 15 0 1.1 0.26 2015* Erosion of natural deposits
Radium 226 pCi/L 5 0 0.44 0.84 2015* Erosion of natural deposits
Radium 228 pCi/L 5 0 1.8 0.22 2015* Erosion of natural deposits

Measured in the Distribution System

Test Units Max Contaminant Level Max Contaminant Level Goal Distribution System Date Sampled Source of Contaminant
Total Coliform Bacteria count 1 positive sample per month 0 No Violation Weekly Runoff from organic material
Haloacetic Acids (HAAS) mg/L 0.06 N/A 0.0019 avg
ND-0.0074
Quarterly By-product of drinking water disinfection
Total Trihalomethanes(TTHM) mg/L 0.08 N/A 0.0033 avg
0.00071-0.00753
Quarterly By-product of drinking water disinfection
Chlorine mg/L MRDL = 4 MRDL = 4 0.49 avg Continuous Disinfectant used to control microbes
Copper mg/L AL = 1.3 1.3 90th Percentile = 0.320 2022* Corrosion of household plumbing systems, erosion of natural deposits
Lead mg/L AL = 0.015 0 90th Percentile = 0.0006 2022* Corrosion of household plumbing systems, erosion of natural deposits

*Summary of the most recent water quality test results for the CBJ water system. ADEC and EPA limit the amount of certain contaminants in drinking water to ensure the safety of public health. Juneau’s treated drinking water met all State and Federal standards for public health. Some data, though representative, is more than a year old. Per State requirements, some contaminants are monitored less than once per year due to infrequent concentration shifts.

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