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Is Tagish Water Safe to Drink?
Tagish community water fill station · 2017 data · official source

This is the safety page for Tagish — how hard the water is (and what that costs) lives on the Tagish water hardness page · see how Tagish compares across all of Yukon on the Yukon hardness guide · or browse every Yukon city by safety status on the Yukon water quality page.
Tagish's water has Arsenic above the Health Canada legal limit. See the breakdown below and consider a filter rated for that contaminant.
What's in Tagish's water
Detected contaminants reported for Carcross Tagish First Nation.
Source: Yukon Government — Source Water Supply Protection Study (Tetra Tech, 2017).
Arsenic exceeds the Health Canada legal limit. This is worth investigating — a filter rated for that contaminant may be appropriate.
How to read this table: the legal limit (Health Canada's Maximum Acceptable Concentration (MAC)) is the enforceable safety line — it's what regulators actually require. A contaminant above its aesthetic guideline (like iron or sodium) affects taste or staining — not your health.
| Contaminant | Typical level | Health Canada limit | Status |
|---|---|---|---|
| Arsenic | 0.012 mg/L | 0.01 mg/L | Above limit |
| Manganese | 0.211 mg/L | 0.05 mg/L | Above aesthetic |
| Iron | 0.487 mg/L | 0.3 mg/L | Above aesthetic |
Levels are typical (median) municipal test results. The legal limit is Health Canada's Maximum Acceptable Concentration (MAC).
Not sure what these levels mean for your health? Read our complete contaminants guide — what's detected vs. what matters, and how to read the numbers.
What actually matters in Tagish's water

Most of the numbers in the table are below the legal limit and aren't worth your worry. Here's the honest read on the ones people actually ask about in Tagish:
Why the limit exists: Arsenic is a Group 1 human carcinogen (IARC). The limit is based on increased risk of bladder, lung, and skin cancer, plus skin damage and circulatory problems at elevated long-term exposure.
Source: EPA MCL / HC MAC
Why the limit exists: Manganese is mostly an aesthetic concern (black staining, bitter taste) at typical levels. Note: the very young and elderly may be more sensitive to manganese at high exposure, so Health Canada also sets a health-based limit above the aesthetic objective.
This is an aesthetic measure — not a health hazard.
Source: HC AO / EPA SMCL
Why the limit exists: Iron above the objective is an AESTHETIC concern, not a health risk — it causes reddish-brown staining, a metallic taste, and can clog fixtures and promote iron bacteria. It does not pose a health hazard like lead or arsenic.
This is an aesthetic measure — not a health hazard.
Source: HC AO / EPA SMCL
Where Tagish's water comes from — and how it's treated

Groundwater (well system)
Like every Canadian municipal supply, Tagish's water is disinfected (typically chlorine or chloramine) and monitored against Health Canada's Guidelines for Canadian Drinking Water Quality, enforced provincially. If you want to read the raw report for yourself, our how to read your water quality report guide walks you through it line by line.
Water quality vs. water hardness — don't confuse the two
"Water quality" (is it safe to drink) and "water hardness" (how much scale it leaves) are entirely different things — and confusing them leads to bad purchases. Tagish's water is very hard (16 GPG), which has no bearing on its safety — hardness is a cosmetic and appliance concern, not a health one. For what that hardness costs you in scale, appliance wear, and water-heater efficiency, see the Tagish water hardness page.
If contaminants concern you — add a drinking-water filter
Should you filter Tagish's water?
The softener handles hardness; a drinking-water filter removes Arsenic and removes Manganese — if Tagish's reported levels concern you. EPA: Arsenic is a known human carcinogen (skin, lung, bladder cancer) and, at exposure, is also linked to cardiovascular disease and developmental effects. EPA MCL: 10 ppb. EPA: Manganese at elevated levels is associated with neurological effects, particularly in infants and the elderly. For a full breakdown of what each filter type removes, see best whole-house water filters.
We may earn a commission when you buy through links on our site. This doesn't affect our recommendations. Full disclosure.
When to call a professional
Tagish's water has Arsenic above the legal limit, so this is the one case where having a professional look at your tap — not just the city-wide average — is genuinely worth it. A licensed water-treatment specialist can test your home's water specifically, confirm whether your plumbing is contributing anything extra, and recommend a correctly-rated filter (for PFAS, a point-of-use reverse-osmosis or granular-activated-carbon system, for example).
Certified, independent results come from a state/province-licensed lab, not a company with a sales incentive — ask for a lab that reports to Health Canada or your province.
Frequently asked questions
Is Tagish tap water safe to drink?
Tagish water has contaminant(s) above the legal limit. Review the breakdown below before drinking unfiltered.
Who tests Tagish's water, and how often?
Tagish community water fill station samples and reports under provincial drinking-water regulations, tested continuously for microbiological safety and routinely for chemical parameters. Results are summarized in the provincial and municipal reports linked on this page.
Where does Tagish drinking water come from?
Groundwater (well system)
Should I filter Tagish's tap water?
Yes — a filter rated for the specific contaminant(s) above the limit is worth considering. See the full breakdown for which one matters.
Is Tagish water hard?
Tagish water is very hard at 16 GPG (274 ppm). Hardness is separate from safety — it affects scale and appliances, not health. See the Tagish water hardness page for the full picture.
Sources & method
All contaminant levels are drawn from official, published data — Yukon Government — Source Water Supply Protection Study (Tetra Tech, 2017) (source). We cite the legal limit for each contaminant so you never see a bare scare number.
- · Tagish community water fill station — water-quality report we reviewed
- · Health Canada — Guidelines for Canadian Drinking Water Quality
- · Government of Canada — Water quality
- · USGS — Water Hardness
- · Water Quality Association — Scale & Hardness
- · EPA — Drinking Water Regulations
- · Our complete contaminants guide (what's detected vs. what matters, how limits are set)
- · How to read your water quality report — line by line
Compare Tagish to Other Yukon Cities
How Tagish's water quality stacks up against nearby cities — same Yukon data, same legal limits.
Other Cities With Exceedances
Cities where a contaminant also runs above the legal limit — see how they compare to Tagish.
Explore More
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💧 Water treatment pros: this page is yours to share
This page helps customers understand what's in their water and whether they need a filter — so they can weigh whether service is worth it. We recommend sharing this page along with our complete contaminants guide in your next quote or follow-up to fully explain the value of your services.