The Kansas water almanac
What's in south-central Kansas water?
A plain, sourced record of hardness, iron and nitrate — county by county — so you can see what you're dealing with before anyone knocks on your door. Then we measure your exact tap.
Is the water hard in Wichita and south-central Kansas?
Yes. Wichita city water runs about 8–9 grains per gallon (hard), treated from Cheney Reservoir and the Equus Beds. Wells in Butler, Harvey and rural Sedgwick County run much harder — commonly 15 gpg and up — and in ag country many also carry nitrate, which a softener won't reduce and reverse osmosis will.
By city & county
Hardness & nitrate across the region
| City | County | Hardness | Nitrate note |
|---|---|---|---|
| Wichita | Sedgwick County | ~8–9 gpg (hard) city supply | Low on treated city water; a concern on private wells at the edges. |
| Andover | Butler County | ~15 gpg (very hard) — 260 mg/L on record | Real concern on private ag-country wells nearby. |
| Derby | Sedgwick County | Hard city supply (~8–10 gpg) | Low on city water; check private wells. |
| El Dorado | Butler County | Very hard; wells 15–20+ gpg | Nitrate risk in surrounding ag wells. |
| Augusta | Butler County | Very hard; wells common | Nitrate a concern on rural wells. |
| Haysville | Sedgwick County | Hard city supply (~8–10 gpg) | Low on city water. |
| Goddard | Sedgwick County | Hard; wells harder on the fringe | Check private wells in the surrounding farmland. |
| Maize | Sedgwick County | Hard; wells harder on the fringe | Nitrate possible on nearby ag wells. |
| Valley Center | Sedgwick County | Hard; very hard on wells | Nitrate a concern on rural wells. |
| Newton | Harvey County | Very hard; wells common | Nitrate risk across Harvey County ag wells. |
| Mulvane | Sumner County | Hard; very hard on wells | Nitrate a concern on rural wells. |
| Rose Hill | Butler County | Very hard well water common | Nitrate risk on surrounding ag wells. |
gpg = grains per gallon. Figures are regional references from city reports, the Kansas Geological Survey and KDHE; individual wells vary, which is why we measure on site.
Answers
Kansas water, explained
How hard is the water in Wichita, Kansas?
Wichita city water runs hard — about 8 to 9 grains per gallon. It's treated from Cheney Reservoir and the Equus Beds well field. Wells in Butler and Harvey County run much harder, commonly 15 grains per gallon and above.
How common is nitrate in Kansas well water?
Common enough to test for. The Kansas Geological Survey estimates a large share of the state's private wells exceed the drinking-water nitrate limit, with south-central Kansas ag country among the more susceptible regions. Nitrate is invisible and tasteless, so testing is the only way to know.
Does a softener fix nitrate?
No. Softeners reduce hardness and iron, not nitrate. Reverse osmosis reduces nitrate — so well homes with nitrate typically run a softener for the house and an RO system at the drinking tap.
Sources
Where these figures come from
- Kansas Geological Survey — nitrate in Kansas groundwater / private wells — www.kgs.ku.edu/
- Kansas Dept. of Health & Environment (KDHE) — private well & water program — www.kdhe.ks.gov/
- City of Wichita — Water Quality Report (Cheney Reservoir / Equus Beds) — www.wichita.gov/1042/Water-Quality
- City of Andover / Butler County water references — www.andoverks.com/
Public data summarized for homeowner reference and updated periodically. For the current authoritative figure, consult your utility's latest report or test your well — book a free test for your exact numbers.
Want your well's exact numbers?
The almanac is the regional picture. The free in-home test gives you your water's real hardness, iron and nitrate.