Hard water in Ancient Oaks, PA

Tap water hardness
240mg/L
14.0gpg
Very hard

Reported by Lca Wlsa Central Division · October 2025

PA typical
127 mg/L
EPA health violations since 2016
2
Softener for 3 people
24k grain
Data
Utility report

Tap water in Ancient Oaks has about 240 mg/L of hardness, which is 14.0 grains per gallon. On the USGS scale that counts as very hard. The number comes from Lca Wlsa Central Division, dated October 2025.

Ancient Oaks on the hardness scale, with nearby cities
060120180240300360+PA typical 127Northampton: 57 mg/LNorthampton 57Bethlehem: 63 mg/LBethlehem 63Hellertown: 63 mg/LHellertown 63Sanatoga: 106 mg/LSanatoga 106Fullerton: 158 mg/LFullerton 158Emmaus: 191 mg/LEmmaus 191Dorneyville: 192 mg/LDorneyville 192Wescosville: 240 mg/LWescosville 240Breinigsville: 240 mg/LBreinigsville 240Perkasie: 289 mg/LPerkasie 289Ancient Oaks 240mg/L as calcium carbonate060120180240300360+PA 127Northampton: 57 mg/LNorthampton 57Fullerton: 158 mg/LFullerton 158Emmaus: 191 mg/LEmmaus 191Dorneyville: 192 mg/LDorneyville 192Wescosville: 240 mg/LWescosville 240Breinigsville: 240 mg/LBreinigsvi. 240240 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 240 mg/L, Ancient Oaks is 113 mg/L above the typical Pennsylvania figure of 127. Of the 10 nearest cities we track, 7 have softer water and 1 has harder. The range nearby runs from 57 mg/L in Northampton to 289 in Perkasie.

What 240 mg/L means at home

Scale forms fast here. Kettles and coffee makers need regular descaling, and showerheads clog unless you clean them.

Tank water heaters collect mineral sediment that insulates the water from the burner, so flushing the tank matters more than usual.

Dishes and glass shower doors spot easily. Soap scum and a dull film on hair or laundry are common complaints.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

At 240 mg/L most of the trouble is scale, and only a few things deal with it.

Ion-exchange water softener

The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.

Salt-free conditioner

No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.

Reverse osmosis or carbon filter

Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.

Softener size for Ancient Oaks

3 people × 75 gallons a day × 14.0 gpg = 3,159 grains a day. A 24,000-grain unit regenerates about every 7 days.

Size it for your household

EPA record for Ancient Oaks's water system

Lca Wlsa Central Division · PWSID PA3390073

2 health-based violations since 2016

Serves about 47,693 people from surface water.

Health-based
2
Monitoring or reporting
12
Open now
0

TapWaterData ties Ancient Oaks to this system. EPA's service-area records do not name Ancient Oaks, so check the utility printed on your water bill.

20162017201820192020202120222023202420252026Di(2-ethylhexyl) phthalateTotal Coliform Rule'16'18'20'22'24'26Di(2-ethylhexyl) phthalateTotal Coliform Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Di(2-ethylhexyl) phthalate12019–2020Resolved
Total Coliform Rulebacteria12018Resolved

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Ancient Oaks water hard?

Yes. It measures about 240 mg/L (14.0 grains per gallon), which the USGS classes as very hard.

What is the water hardness in Ancient Oaks in grains per gallon?

About 14.0 gpg. One grain per gallon equals 17.1 mg/L, so 240 mg/L divided by 17.1 gives 14.0.

What size water softener do I need in Ancient Oaks?

For 3 people using 75 gallons each per day, 14.0 gpg works out to about 3,159 grains a day. A 24,000-grain softener covers that with a regeneration about every 7 days.

Has the Ancient Oaks water system had EPA violations?

EPA records show 2 health-based violations for Lca Wlsa Central Division since 2016, involving Di(2-ethylhexyl) phthalate, Total Coliform Rule. There were also 12 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 172 cities in Pennsylvania

Hardness data: TapWaterData US Water Hardness (utility report, October 29, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.