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Water Treatment and Filtration in Gastonia, NC

Gastonia’s water utility has already told you not to buy a water softener.

Two Rivers Utilities, which is the City of Gastonia’s water utility and the name you should be looking for on your bill, publishes this in its own customer FAQ: “Our water hardness is usually about 14 mg/L. Due to the lack of hardness, most people find water-softening devices are not necessary.”

That FAQ dates to around 2014 and the current annual report does not publish a hardness figure, so treat the number as indicative rather than current. But it is the utility itself, in writing, telling its own customers the thing a water treatment company is supposed to be selling against.

We would say the same thing. We would rather you heard it from them.

Two Rivers Utilities

What is in Gastonia’s water.

Two Rivers Utilities draws from Mountain Island Lake, the same 3,281-acre impoundment on the Catawba that supplies Charlotte, created in 1924 and named for the mountain that looks like an island in it. Two report years are in play here and they do not carry the same fields, so each figure below is labelled with the year it came from.

Disinfection byproducts

2025 report

  • Trihalomethanes 60.8 ppb at the highest running annual average, against an 80 ppb federal limit. No violation.
  • Haloacetic acids 39.3 ppb at the highest running annual average, range 24.0 to 39.0, against a 60 ppb limit. No violation.
  • Chlorine running annual average 1.2 ppm, range 0.6 to 1.8, MRDL 4.0. No chloramine.
  • Both compliant. Both closer to the line than Charlotte’s. This is the real story in Gastonia.

Two Rivers Utilities 2025 Annual Drinking Water Quality Report · read it

PFAS and fluoride

2024 report only, and that matters

  • All 29 PFAS analytes below the reporting limit under EPA’s UCMR5 programme, including PFOA under 0.0038 and PFOS under 0.0039 µg/L. Sampled January, April and July 2024.
  • Fluoride non-detect. Gastonia does not fluoridate, unlike Charlotte, Rock Hill and Concord.
  • Neither of those appears in the 2025 report at all, so both are 2024 results and should be described as such.
  • Iron, manganese and nickel all non-detect. Sodium 11 ppm, pH 7.2.

Two Rivers Utilities 2024 Annual Drinking Water Quality Report · read it

Hardness, lead and turbidity

Where each number comes from

  • Hardness about 14 mg/L, roughly 0.82 grains per gallon by our own conversion, from the utility FAQ whose filename dates it to about 2014. Not in the current report.
  • Lead: 90th percentile non-detect, range ND to 2.4 ppb, no sites above the action level, from the September 2023 sampling round.
  • Turbidity highest single measurement 0.099 NTU, which is very clean filtration.
  • Population served 93,877 in 2023, per the NC Division of Water Resources.

Two Rivers Utilities Water FAQ (about 2014) · 2024 and 2025 annual reports · read it

If a salesperson is using forever chemicals to sell you a system in Gastonia, the 2024 report is the document to hand them. All 29 compounds below the reporting limit is a better PFAS result than most systems in this region can show. The 2025 report does not repeat the PFAS table, so that result is a 2024 result, and we are not going to describe it as anything else.

Published pricing

Two standard rates. Both on this page.

A house is either on city water or on a well, so there are two prices. They are the same in every house we install in, they are the same on the invoice, and they do not move because you seem interested or because it is a Friday afternoon.

If you are on city water

The city water system

$2,900installed · about $121/mo, 24 months at 0%
  • Whole-house filtration plus softening, at the point water enters the house
  • Treated water at every tap, shower, ice maker and appliance
  • Takes down chlorine and the trihalomethanes disinfection leaves behind
  • Licensed install, tested before we leave, old equipment hauled away
  • Lifetime tank and valve warranty
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If you are on a well

The well water system

$4,500installed · about $188/mo, 24 months at 0%
  • Multi-stage treatment for iron, manganese, sulfur, sediment and low pH
  • Built for Piedmont bedrock wells in York, Lancaster, Union and Gaston
  • Softening sized to the well’s hardness reading, where it genuinely earns its keep
  • Same install standard, same warranty
  • Lifetime tank and valve warranty
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A premium national dealer quotes $7,500 to $11,000 for a comparable full system in this market. Ours are $2,900 and $4,500, installed, published. We are not going to characterize that gap with an adjective.

Market survey of the Charlotte metro, July 2026, compiled from Angi, HomeAdvisor, HomeGuide and published Culligan, Kinetico, RainSoft and EcoWater dealer quotes

Custom is quoted, and it usually costs less. If your house needs less than the standard system, a drinking-water system but no softening, say, that is quoted on its own and it lands under the standard rate. The standard is a ceiling for a typical house, not a starting point.

Every price we publish, installed: $2,900 city mixed-bed system with RO · $3,500 dual-tank city system with RO · $4,500 well system · $2,300 coconut-carbon or $2,500 catalytic-carbon system with RO, no softening · $700 tankless RO on its own. See the full pricing page for what each rate covers and what it costs to own.

Nobody publishes a lower installed price. Find one, we’ll beat it.

That stands against both rates, the $2,900 and the $4,500.

Published, installed, like-for-like, Charlotte metro. Show us a competitor’s own published installed price for a comparable whole-home system in our service area and we will beat it. It has to be a number they printed, not one somebody said in a kitchen, because a price nobody will print is not a price.

Send us the page

So what would we actually sell you in Gastonia?

Often, less than you expected.

The real story here is disinfection byproducts. Trihalomethanes at a highest running annual average of 60.8 ppb against an 80 ppb limit, and haloacetic acids at 39.3 against a 60 ppb limit, both from the 2025 report. Both compliant. Both closer to the line than Charlotte’s. Carbon filtration at the point of entry addresses them, and reverse osmosis at the kitchen tap addresses what you drink.

Not a softener. Not on this supply, and you have the utility’s own words for it.

Gaston County wells are the other half of this market and a completely different job. The general Piedmont pattern of iron, manganese, low pH and radon applies, no agency tests a private well, and North Carolina’s Radon-in-Water Advisory Committee mapped parts of Gaston County inside its seven areas of particular radon susceptibility. Our well water system is $4,500 installed.

Two Rivers Utilities 2025 report · USGS SIR 2009-5149 · NC Radon-in-Water Advisory Committee Final Report, 9 March 2011

Gastonia areas we serve

Downtown Gastonia, Robinwood, Gardner Park, Hudson, Bradley, Belmont, Mount Holly, Cramerton, Dallas, Lowell and the rest of Gaston County.

Where to go next

How the free test works

About 45 minutes, at your own kitchen tap. Hardness, chlorine, total dissolved solids, pH and iron, read while you watch. You keep the readings whether you buy anything or not.

  1. Book the test

    Pick a time, including weekday evenings and Saturday mornings. It takes about 45 minutes and it costs nothing.

  2. We measure

    Hardness, chlorine, total dissolved solids, pH and iron, read at your kitchen tap while you watch. You keep the readings.

  3. You get a number

    The standard rate if the standard build is what your water needs, or a smaller custom number if it is not. Plus the running cost for the first year. Written down before we leave.

  4. We install

    Usually inside the same week. Licensed install, tested on the spot, old equipment hauled away.

Gastonia questions, answered with the report

Is Gastonia’s water hard?

Two Rivers Utilities has told customers its hardness runs around 14 mg/L and that most people find water-softening devices unnecessary. That guidance dates to around 2014 and the current report does not publish hardness, so a test at your tap is the way to confirm it. The direction is clear, though, and it is soft.

Two Rivers Utilities Water FAQ, filename dated about 2014

Does Gastonia’s water have PFAS?

Two Rivers Utilities’ 2024 report shows all 29 PFAS compounds tested under EPA’s UCMR5 programme came back below the reporting limit, including PFOA and PFOS. That is a strong result. The 2025 report does not include a PFAS table, so 2024 is the most recent published figure.

Two Rivers Utilities 2024 Annual Drinking Water Quality Report

Is there fluoride in Gastonia’s water?

No. Fluoride was reported as non-detect in the 2024 annual report. Two Rivers Utilities does not fluoridate, unlike Charlotte, Rock Hill and Concord. The 2025 report does not report fluoride at all.

Two Rivers Utilities 2024 Annual Drinking Water Quality Report

All questions

Get your free water test.

Takes about 45 minutes. You get the readings, the recommendation and the price in writing: the standard flat rate if the standard build is right, a smaller number if it is not, and nothing at all if you do not need us.

Call or text
(704) 773-5121
Email
hello@standardwaternc.com
Hours
Mon to Fri 8am to 6pm · Sat 9am to 2pm
Service area
Charlotte, Huntersville, Matthews, Mint Hill, Concord, Gastonia, Monroe, Indian Trail, Waxhaw, Weddington, Marvin, Rock Hill, Fort Mill, Tega Cay, Indian Land and Lake Wylie. Full list
Standard rates
City water system $2,900 installed, about $121 a month at 24 months, 0%. Well water system $4,500 installed, about $188 a month. Custom is quoted, and it usually costs less.

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Takes 30 seconds. No obligation.

Every price published, installed. Pick the closest one — the free test confirms it, and custom is quoted and usually costs less.

100% free · No obligation · We will tell you if you do not need us

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