Two warnings first, or the table lies:
- Cities do not price the same way. Topeka gives big users a cheaper class rate. Wichita, Lawrence, Hays, and Olathe often use winter-average / inclining blocks that punish summer spikes. Hutchinson and Emporia discount volume the more you use.
- This is incoming water only. Food plants usually pay more for sewer than for water (high-strength waste). Sewer is a second ordinance in every city.
How the structures differ
Topeka — declining by class, not by monthly volume. Industrial and Industrial II pay less per thousand gallons than houses, no matter how much they use. 2026 inside-city volume: Industrial $5.35, Industrial II $5.04, commercial $5.99, single-family $7.75. City staff have talked about flattening that over several years.
Wichita — commercial volume is inclining, tied to Average Winter Consumption (AWC). 2026 inside commercial: Block 1 (through 110% of AWC) $3.83 / 1,000 gal; Block 2 $13.36; Block 3 $19.55. A year-round chip or salad plant with high winter use can stay mostly in Block 1. A plant that spikes in summer gets crushed. City staff’s own 2026 example for a 10 million gallon/month industrial customer put the combined water + sewer bill around $82,000–$88,000 a month.
Manhattan — basically one inside volume rate. Current code is $3.40 per 100 cubic feet inside (about $4.55 per 1,000 gallons), double outside. Plus a meter minimum and a capacity surcharge that gets large on 6- and 8-inch meters. 2026 budget assumed about a 3% bump. No cheap “Industrial II” class.
Hays — conservation city. Not on a fat river. Rates are winter-average plus penalty tiers. Base tier about $2.71 per 100 cf (~$3.62 / 1,000 gal); conservation tiers jump to ~$7.22 and $10.50+. A steady process plant can live on the base tier. A new water hog would be fighting the city’s whole water ethic, not just the tariff.
Lawrence — industrial inside $10.33 per 1,000 gallons in 2026. That is the high-cost peer. Commercial is $10.44. They are not trying to be the cheap industrial gallon.
Hutchinson — non-residential declining blocks. Above 5,000 HCF (~3.7 million gallons) the inside rate is $3.07 per 100 cf (~$4.10 / 1,000 gal). Big users get a discount.
Emporia — aggressive declining blocks. Over 7 million gallons/month inside is $2.64 / 1,000 gal. A 10-million-gallon month is mostly at that floor. Cheap gallons if you are huge.
Olathe (Johnson County, different water world): 2026 industrial first block $4.01 per 100 cf (~$5.36 / 1,000 gal), higher if you blow past winter use.
Garden City — published commercial inside about $3.26 / 1,000 gallons. Groundwater town. Cheap commodity, different politics (High Plains aquifer).
Same plant, 10 million gallons in one month (water volume only)
That is the example Topeka and Wichita both use in public meetings. Ignore base/meter charges for a second — on a 6- or 8-inch meter those are hundreds to low thousands, not the story.
| City | Structure | Approx. volume rate that would apply | Water volume on 10M gal |
|---|---|---|---|
| Emporia | Declining; floor $2.64/kgal | ~$2.64–$2.85 | ~$26,000–$29,000 |
| Garden City | Flat commercial ~$3.26/kgal | ~$3.26 | ~$32,600 |
| Hays | If usage stays on winter base | ~$3.62 | ~$36,200 |
| Wichita | If usage stays in Block 1 | $3.83 | ~$38,300 |
| Hutchinson | Large-user block | ~$4.10 | ~$41,000 |
| Manhattan | Flat ~$4.55/kgal | ~$4.55 | ~$45,500 |
| Topeka Industrial II | Class rate | $5.04 | ~$50,400 |
| Topeka Industrial | Class rate | $5.35 | ~$53,500 |
| Olathe industrial (winter block) | ~$5.36/kgal | ~$5.36 | ~$53,600 |
| Lawrence industrial | $10.33/kgal | $10.33 | ~$103,300 |
| Wichita if they blow AWC | $13–$20/kgal | — | can double or triple |
So: Topeka is not the cheapest industrial gallon in Kansas, and it is not the most expensive. It sits in the middle of the pack on commodity water — cheaper than Lawrence, in the same neighborhood as Olathe’s industrial first block, more expensive than Hutchinson, Emporia, Manhattan, and Wichita’s Block 1.
Wichita’s Block 1 looks cheaper than Topeka until the plant exceeds winter average. Then Wichita gets expensive fast. Topeka’s industrial class is predictable: $5.04 or $5.35 all year.
What this means for “if the plant were in Wichita / Manhattan / Hays”
Wichita. A Frito-Lay-scale plant would not automatically save money. If winter process water is high, Block 1 at $3.83 beats Topeka. If production is seasonal or they add a line mid-year, Blocks 2–3 are punitive. Wichita also just locked in multi-year water/sewer hikes (~7% a year) to pay for a new treatment plant and lost wholesale customers. Staff’s own 10-million-gallon industrial example is already an ~$82k–$88k combined monthly bill.
Manhattan. Volume is a bit cheaper than Topeka (~$4.55 vs $5.04). No Industrial II discount. Capacity surcharges on big meters add up. Fine for a mid-size plant; not a reason to move a $750 million chocolate factory.
Hays. Base rate can look cheap. Supply is not. Hays is the large Kansas city without a sustainable nearby source; conservation is policy, not a slogan. You do not put a potato-chip or salad campus there to save 80 cents a thousand gallons.
Lawrence. Industrial water is roughly double Topeka. Nobody relocates a wet food plant to Lawrence for the water tariff.
Hutchinson / Emporia. On paper, large-user water is cheaper than Topeka. Labor, logistics, and sewer strength still dominate the site decision. Emporia’s $2.64 floor is the bargain-bin rate in this set.
The number that still does not move Mars or Pepsi
Take Topeka Industrial II at $5.04 × 120 million gallons/year ≈ $605,000 water volume.
Same 120 million gallons:
- Emporia floor ≈ $317,000
- Wichita Block 1 ≈ $460,000
- Manhattan ≈ $546,000
- Lawrence ≈ $1,240,000
The spread across Kansas for that one input is a few hundred thousand a year — not tens of millions. Against PepsiCo’s ~$10.5 billion profit or Mars’ $65 billion sales, the city-to-city difference is still a rounding error. Against Reser’s $2 billion sales it is visible in a plant budget, still not a relocation number.
Sewer plus high-strength surcharges can flip the ranking. A city with cheap water and expensive industrial sewer can cost more all-in than Topeka. That is the next layer if you want it.
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