You Got a Water Test. Here's What Your Utah Results Actually Mean.

Whether you ran a test strip at home, got results from a mail-in kit, or just received a Blue Logic in-home water test, you’re now looking at numbers that may not mean much without context. This guide explains what the most common Utah water test results actually mean — and what actions make sense at different reading levels.

Hardness (GPG or mg/L)

What the number means:
Hardness measures dissolved calcium and magnesium. It’s expressed in grains per gallon (GPG) or milligrams per liter (mg/L — same as parts per million). 1 GPG = approximately 17.1 mg/L.

Utah context by result:

Your Reading	Classification	What to expect
0–7 GPG	Soft to slightly hard	Minimal scale. Uncommon on the Wasatch Front.
7–10 GPG	Moderately hard	Some scale in hot water systems. Consider softening.
10–14 GPG	Hard	Noticeable scale, appliance impact begins. Softening recommended.
14–20 GPG	Very hard	Rapid scale, appliance damage accelerates. Common in Sandy, Layton, Draper, Orem.
20+ GPG	Extremely hard	Severe and fast scale. Bountiful, Spanish Fork, Springville often reach these levels.

What to do:
Above 10 GPG, softening meaningfully extends appliance life and reduces visible scale. Blue Logic’s integrated softening (in both filtration and RO systems) uses ~75% less salt than a standalone softener and addresses hardness as one stage of a broader system.

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Chlorine / Chloramine (ppm)

What the number means:
Your utility adds chlorine or chloramine as a disinfectant. The residual at your tap is what remains after treatment and distribution.

Reading	What it means
0–0.2 ppm	Very low residual. Tap is far from treatment plant or residual dissipated.
0.2–1.0 ppm	Normal range for most Wasatch Front taps.
1.0–2.0 ppm	Higher residual. Noticeable taste/odor in many people. Common closer to treatment facilities.
2.0–4.0 ppm	EPA maximum. Strong chemical taste/odor.

What to do:
Above 1.0 ppm, most people notice chlorine taste and odor in drinking water and from hot showers. Blue Logic’s catalytic carbon filtration stage reduces chlorine and chloramine throughout the entire home — not just at the kitchen tap.

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pH

What the number means:
pH measures acidity/alkalinity. 7 is neutral. Utah water is typically slightly alkaline (7.5–8.5) due to the calcium carbonate buffering from hard water geology.

Reading	Concern level
6.5–8.5	Normal — EPA secondary standard range
Below 6.5	Acidic — can corrode pipes and leach metals. Uncommon in Utah municipal water.
Above 8.5	Highly alkaline — can accelerate scale; common in some Utah well water.

What to do:
Most Utah tap water falls in the acceptable 7.5–8.2 range. No action needed for pH alone unless you have specific corrosion or scaling concerns.

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Iron / Manganese

What the number means:
Iron and manganese are naturally occurring metals in Utah groundwater, particularly in Ogden’s Weber County artesian sources and in some Davis County supplies.

Reading	What you’ll notice
Iron under 0.3 ppm	EPA secondary standard — aesthetic concern only
Iron over 0.3 ppm	Orange/rust staining on fixtures, laundry, and toilet bowls
Manganese under 0.05 ppm	EPA secondary standard
Manganese over 0.05 ppm	Dark brown/black staining; metallic taste

What to do:
Blue Logic’s Katalox filtration stage specifically targets iron and manganese removal. If staining is a concern, this is the relevant stage to ask about at your water test.

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What Your Results Don’t Tell You

A basic in-home test (hardness, chlorine, pH) measures what it measures — and nothing else. It does not tell you about:

• Arsenic (requires lab testing or EWG database lookup for your utility)
• PFAS (requires certified lab test or utility monitoring data)
• Lead (requires testing from your specific tap — utility supply may be lead-free while your pipes are not)
• Haloacetic acids or trihalomethanes (disinfection byproducts — check EWG database for your utility)

For the full picture on your city’s water, check the EWG Tap Water Database for your utility and review our Utah water quality guide.

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Next Steps Based on Your Results

If hardness is above 14 GPG:
→ Whole-home filtration or RO with integrated softening is warranted. Scale is actively damaging appliances.

If chlorine is above 1.0 ppm:
→ Whole-home carbon filtration addresses this at every tap and shower — not just at the kitchen sink.

If you have iron or manganese staining:
→ Ask specifically about the Katalox stage at your water test.

If you want to know about arsenic, PFAS, or chromium-6:
→ These require EWG database lookup or certified lab testing. Your Blue Logic specialist can walk you through your city’s EWG profile at the free water test.

If you’re not sure what to do:
→ Schedule a free in-home water test. A Blue Logic specialist will test your water on-site and explain exactly what your numbers mean for your home — no cost, no obligation.

Schedule your free water test →
How to read a water test (full guide) →
Utah water quality overview →