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OpenStats picks for Sydney — very hard water (270 mg/L)
Sydney hardness is 270 mg/L — pitcher filters improve taste but will not soften water. Size a metered whole-house softener for scale, and add under-sink carbon for drinking chlorine.
Sydney tap water: Grade C, hardness 270 mg/L
By OpenStats · Built from official Canadian sources
Regional estimateC
Water quality grade
Fair
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average270 mg/L · prov. avg 175 mg/L
Lead vs provincial average0.6 μg/L · prov. avg 0.3 μg/L
Hardness
270 mg/L
Lead
0.6 μg/L
≤ 5 μg/L
pH
6.8
6.5–8.5 range
Hardness
270 mg/L
Very hard
Lead
0.6 μg/L
Max: 5 μg/L
pH
6.8
6.5–8.5
Chlorine
1.1 mg/L
Max: 4 mg/L
SponsoredAlso consider
Aquasure Harmony 40,000 grain softener
OpenStats pick for Sydney’s 270 mg/L hardness — metered whole-house softener sized for very hard Canadian tap water
SponsoredAlso consider
Waterdrop 15UB under-sink system + faucet
Sydney: under-sink carbon for drinking water (chlorine 1.1 mg/L) — does not remove hardness minerals
SponsoredAlso consider
SR SUN RISE 20-stage shower filter
Sydney’s 1.1 mg/L chlorine — bestselling shower filter on Amazon.ca
SponsoredAlso consider
VARIFY hardness test strips
Verify 270 mg/L hardness at your tap before buying salt and sizing a softener
As an Amazon Associate, OpenStats earns from qualifying purchases.
Partner
Lab water test for Sydney taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Sydney tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Reading this page
Sydney's drinking water earns Grade C (Fair). Hardness is 270 mg/L (very hard), and pH is 6.8 against Health Canada's 6.5–8.5 guideline.
Lead at 0.6 μg/L is below the 5 μg/L maximum, and fluoride is 0.5 mg/L against a guideline of ≤ 1.5 mg/L.
How to use this page: read the headline metric and provincial comparison first, then supply and treatment notes, then the source footer for the underlying dataset.
Watershed to tap
Supply and treatment
How Sydney draws, treats, and distributes drinking water, from municipal and utility publications. Chemistry grades above come from separate parameter records; this section does not invent plant lab figures.
Source type
Groundwater
Research confidence: high
Source waters
- Middle Lake Road Wellfield / Sydney Wellfield (fractured bedrock; ~11 production wells)
Treatment plants
CBRM Sydney Water Treatment Plant (Middle Lake Road Wellfield)
CBRM lists a distinct Sydney treatment plant serving Sydney, Coxheath, Westmount, Sydney River, Grand Lake Road, Mira Road, Membertou, South Bar, Prime Brook, and Pine Tree Park. Wellfield commissioned 1996 to replace Sydney’s former five-lakes surface supply. Pottle Lake membrane plant serves Northside only—not downtown Sydney.
Distribution
Cape Breton Regional Municipality operates seven distinct supply areas. Sydney area is the Middle Lake Road Wellfield; other CBRM communities use separate surface plants (Pottle Lake, MacAskill Brook, Waterford/Kilkenny, Kelly Lake) or small community wells.
Health parameters meet Health Canada limits; turbidity above the 1 NTU typical target and very hard water.
One or more parameters exceed a Health Canada drinking water guideline or turbidity target.
Figure 1 · Supply chain
From watershed to tap
Compared to provincial average
Nova Scotia · 9 cities in sample
Hardness (city vs Nova Scotia avg)270 mg/L
pH (city vs Nova Scotia avg)6.8
Lead (city vs Nova Scotia avg)0.6 μg/L
Fluoride (city vs Nova Scotia avg)0.5 mg/L
Provincial average: hardness 175 mg/L · pH 7.4 · lead 0.3 μg/L · fluoride 0.6 mg/L
Full parameters
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 270 mg/L | No health limit (aesthetic) | Compliant |
| pH | 6.8 | 6.5–8.5 | Compliant |
| Lead | 0.6 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.5 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 1.1 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 3.1 NTU | ≤ 1 NTU (typical target) | Exceeds guideline |
Alberta water licences
WaterRegister.ca
On a private well or holding an Alberta water allocation licence? Water Register maps EPA licence records, transfer comparables, and watershed context across the province.
Explore WaterRegister.ca →OpenStats pick
OpenStats picks for Sydney — very hard water (270 mg/L)
Sydney hardness is 270 mg/L — pitcher filters improve taste but will not soften water. Size a metered whole-house softener for scale, and add under-sink carbon for drinking chlorine.
As an Amazon Associate, OpenStats earns from qualifying purchases.
· Compare options- Shop on Amazon.caAquasure Harmony 40,000 grain softenerOpenStats pick for Sydney’s 270 mg/L hardness — metered whole-house softener sized for very hard Canadian tap water
- Shop on Amazon.caWaterdrop 15UB under-sink system + faucetSydney: under-sink carbon for drinking water (chlorine 1.1 mg/L) — does not remove hardness minerals
- Shop on Amazon.caSR SUN RISE 20-stage shower filterSydney’s 1.1 mg/L chlorine — bestselling shower filter on Amazon.ca
- Shop on Amazon.caVARIFY hardness test stripsVerify 270 mg/L hardness at your tap before buying salt and sizing a softener
- Shop on Amazon.caFleck 5600 SXT softener (alternate)Alternate Fleck 5600 SXT listing if Aquasure is out of stock
Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.