Well Water Treatment in Union County, NC
Well water filtration system typically runs $1,200–$3,600 nationally, per our cost guide. Independent local pros serving Monroe, Waxhaw, Indian Trail and nearby communities. Describe the problem and we'll route your request — free, no obligation.
- Softeners $1,200–$3,800 installed (HomeGuide)
- Iron filtration $1,000–$3,500 installed (HomeGuide)
- Free quotes from licensed local contractors
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Typical national cost$1,200 – $3,600Cost guide →Local Help in Union County, NC
Union County has the clearest arsenic signal in our network.
Of 5,154 private wells tested by the state lab from 1998 to 2019, 1,003 (19.5%) were above EPA's 10 µg/L arsenic standard, and the highest result was 303 µg/L.
Arsenic has no taste, color or smell, so a lab test is the only way to know. Union's environmental health office sells arsenic speciation testing, which treatment pros use to choose a system.
Union County Service Details
What providers in this area actually see: coverage, common jobs, local pricing factors, and rules worth knowing.
Service Area Notes
- Coverage across Monroe, Waxhaw, Indian Trail, Stallings, and the rural east and south county.
- Water tests available through Union County Environmental Health; treatment pros coordinate quotes with results.
Common Jobs in Union County
- Arsenic speciation testing and treatment system selection
- Whole-house arsenic removal systems
- Combined arsenic and manganese filtration
- Iron and manganese staining treatment
What Drives Pricing Here
- Arsenic treatment ($1,000–$4,000)
- Combined manganese/iron filtration ($1,000–$3,000 for manganese)
- An $80 speciation test to pick the right system
Permits & Local Rules
- Union County Environmental Health sells private-well water tests: bacterial $70; inorganic $130; arsenic speciation $80; hexavalent chromium $100; up to three metals plus uranium $100.
Local Conditions
- Arsenic is the headline.
- Manganese is the most common secondary problem: 27.7% of 3,466 wells were above EPA's 0.05 mg/L secondary standard in 1998–2010.
- Iron exceeded 0.3 mg/L in 18.6% of wells.
- 5.7% of tested wells had pH below 6.5.
Communities Served
Monroe · Waxhaw · Indian Trail · Stallings · Weddington · Marvin · Wesley Chapel · Marshville · Wingate · Unionville · Mineral Springs · Hemby Bridge
Emergency Response Expectations
An arsenic result above 10 µg/L is not an emergency call-out. Talk to Union County Environmental Health about what the result means for your household, then get treatment quotes from independent local pros.
Union County FAQs
How common is arsenic in Union County well water?
In the state lab's 1998–2019 records, 19.5% of 5,154 tested wells were above EPA's 10 µg/L standard. The county average was 8.73 µg/L.
Why test for hexavalent chromium in Union County?
Total chromium rarely exceeded EPA's 100 µg/L MCL (2 of 2,352 wells). But 58 wells (2.5%) were above North Carolina's stricter 10 µg/L groundwater standard, and the county offers a $100 hexavalent chromium test.
Sources
- UN1: 49,181 residents self-supplied in 2015, 22.1% of 222,742
- UN2: Arsenic: 1,003 of 5,154 wells (19.46%) above 10 µg/L, 1998–2019
- UN3: Arsenic maximum 303 µg/L; county average 8.73 µg/L
- UN4: Manganese: 959 of 3,466 wells (27.67%) above the 50 µg/L secondary standard, 1998–2010
- UN5: Iron: 642 of 3,457 wells (18.57%) above 300 µg/L; maximum 52,900 µg/L
- UN6: Lead: 99 of 5,140 wells (1.93%) above 15 µg/L; maximum 1,740 µg/L
- UN7: Nitrate: 21 of 1,550 wells (1.35%) above 10,000 µg/L (10 mg/L)
- UN8: Chromium: 58 of 2,352 (2.47%) above NC's 10 µg/L 2L groundwater standard; 2 above EPA's 100 µg/L MCL
- UN9: pH: 198 of 3,463 samples (5.72%) below 6.5 and 14 (0.40%) above 8.5; range 4.9–10.9
- UN10: County tests: arsenic speciation $80; hexavalent chromium $100; inorganic panel $130
Last reviewed 2026-10
Nearby Counties
Services Available in Union County
Well Water Testing
Well water tests cost $50–$300 per test. See what EPA says to test every year, county health department prices, and get quotes from local testing pros.
Learn more →Water Softener Installation
Water softener installation averages $1,500 (Angi) with most jobs $200–$6,000. Size yours in grains, see unit prices by capacity, and get local quotes.
Learn more →Iron, Manganese & Sulfur Filtration
Orange stains or rotten-egg smell? Well iron filters cost $900–$4,000 installed. Compare birm, greensand and air-injection systems and get local quotes.
Learn more →UV, Reverse Osmosis & Specialty Treatment
Well UV systems cost $600–$2,200 and under-sink RO $300–$950. Compare treatment for bacteria, nitrate, arsenic and low pH, then get local quotes.
Learn more →Free Tools Before You Call
Ballpark the cost or narrow down the problem before talking to a Union County provider.
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