St. Louis 2026 Commercial Water and Sewer Rates: Tiers, Compliance, and Stormwater
St. Louis’s July 2026 commercial water and MSD sewer schedules use different bill drivers. Check meter tiers, compliance, stormwater, and a bill model.
Direct answer
St. Louis City Water’s 2026 metered schedule and MSD’s current wastewater rates took effect July 1. A commercial account can combine quarterly water readiness and declining volume tiers with monthly sewer base, volume, compliance, and strength lines, plus impervious-area stormwater. Lower use changes eligible volume charges—not readiness, compliance, strength, or stormwater automatically.
$129.54
2-inch readiness
Quarterly City Water charge
$3.09
First water block
Per CCF for the first 250 CCF
$6.65
MSD sewer volume
Per CCF for commercial accounts
$32.41
MSD sewer base
Monthly commercial charge
Official source facts
Two service providers use different billing clocks and bill drivers
The City of St. Louis Water Division’s current metered schedule and MSD Project Clear’s current wastewater rates both took effect July 1, 2026. City Water bills its metered schedule quarterly. MSD states that its July wastewater changes begin appearing on August bills, and its commercial base, compliance, and related charges are monthly.
A commercial bill review therefore needs two source records and a common analysis period. The declared model below aligns one City Water quarter with three MSD monthly base charges for comparison only; it is not a combined utility quote or a claim that the services share one bill cycle.
City Water schedule
Meter readiness stays fixed while the water volume rate declines by block
The Water Division says metered service is used primarily for commercial premises and buildings with seven or more dwelling units. Its quarterly readiness charge depends on meter size: the declared two-inch reference used below is $129.54. The standard quantity schedule charges $3.09 per CCF for the first 250 CCF, $2.42 for the next 19,750 CCF, and $1.55 above 20,000 CCF.
That block structure matters when use crosses 250 CCF. A team should reproduce each block rather than multiply all gallons by a blended rate. Natural-resources charges, gross-receipts treatment, fire service, special service classes, adjustments, and any other City Water line remain outside the model until the account record confirms them.
MSD wastewater schedule
Commercial sewer combines base, volume, compliance, and possible strength charges
MSD lists a $32.41 monthly commercial base charge and a $6.65 per CCF volume charge. It also lists monthly commercial compliance charges ranging from $7.76 to $519.36 according to inspections and sample points. Those compliance charges do not automatically fall when metered use falls.
Accounts with suspended solids above 300 milligrams per liter, biochemical oxygen demand above 300 milligrams per liter, or chemical oxygen demand above 600 milligrams per liter can also face excess-strength charges under the official schedule. Food service, manufacturing, laundry, healthcare, and other wastewater-intensive operations should confirm classification, sampling, and strength treatment directly instead of assuming the volume line is the complete sewer bill.
Property-based stormwater
Impervious area—not monthly water use—drives the nonresidential capital line
MSD’s current stormwater guidance lists a nonresidential Stormwater Capital charge of $1.05 per month for each 1,000 square feet of impervious area. Roofs, pavement, parking, and other impervious surfaces therefore determine this line independently of metered gallons.
The model does not assign a stormwater amount because no property area was declared. Lower water use should not be presented as reducing this charge. A property team should instead verify the recorded impervious area, parcel treatment, and any other stormwater taxes or location-specific lines against the current MSD record.
Commercial implication
Assign each line to its controllable—or account-specific—driver
Hotels, restaurants, hospitals, museums, multifamily buildings, industrial facilities, laundries, campuses, and other commercial users should first identify the Water Division meter size and quarterly CCF. Then reconcile MSD volume, base, compliance tier, strength classification, and impervious-area record separately.
The Water Division also flags future treatment for certain special-service categories, including elimination of listed hospital, zoo, and museum special rates on January 1, 2027. An account in a special class should confirm the controlling schedule and effective date with the utility before using the standard model here.
Smart Valve analysis — not a City Water or MSD bill quote
A declared 300-to-240 CCF quarter with a two-inch meter
Assume one standard metered City Water account has a two-inch meter and moves from 300 CCF to 240 CCF in one declared quarter. Align three MSD monthly base charges with the same volume for analysis. Include only City Water readiness and quantity plus MSD commercial base and volume. Exclude every compliance, strength, stormwater, tax, adjustment, fire, natural-resources, special-class, and account-specific line.
Scroll the table horizontally to compare all columns.
| Modeled line | 300 CCF | 240 CCF | Difference |
|---|---|---|---|
| City Water: readiness + volume | $1,023.04 | $871.14 | Decrease $151.90 |
| MSD: three bases + volume | $2,092.23 | $1,693.23 | Decrease $399.00 |
| Included partial total | $3,115.27 | $2,564.37 | Decrease $550.90 |
| Stormwater capital line | Excluded | Excluded | Property-based |
At 300 CCF, City Water is $129.54 + (250 × $3.09) + (50 × $2.42) = $1,023.04. At 240 CCF, it is $129.54 + (240 × $3.09) = $871.14. MSD is (3 × $32.41) + volume: $2,092.23 at 300 CCF and $1,693.23 at 240 CCF. The $550.90 difference applies only to these included lines.
20% usage check
$550.90
Declared included-exposure difference
In the declared quarter, volume falls 20% from 300 to 240 CCF. The included City Water and MSD lines fall from $3,115.27 to $2,564.37 while readiness and three monthly MSD base charges remain in both cases.
Boundary: This is reproducible analysis, not an average bill, utility quote, forecast, or savings guarantee. It excludes compliance, strength, stormwater, taxes, adjustments, natural-resources charges, fire service, special classes, other services, and all account-specific rules. Operational feasibility must be established separately.
Decision checklist
What to check first on the bill
- 1Confirm that City Water Division and MSD Project Clear are the controlling providers for the service address.
- 2Match the Water Division meter size, quarterly billing period, and CCF volume to the current standard or special service class.
- 3Reproduce the first 250 CCF separately before applying the next City Water volume block.
- 4Match the MSD billing period, $32.41 commercial base, and $6.65 per CCF volume line before calculating wastewater exposure.
- 5Identify the MSD compliance tier, inspection and sample-point count, and any excess-strength treatment; do not include those lines in a usage estimate without account evidence.
- 6Compare the nonresidential stormwater impervious area and any location-specific stormwater tax or charge with current MSD records.
- 7Check special-class treatment and future effective dates before relying on the standard schedule for a hospital, zoo, museum, fire service, or another separately listed account.
Scope boundary
Where Smart Valve realistically fits
Smart Valve can be screened against controllable metered volume and the City Water and MSD volume exposure linked to that volume. It does not change meter readiness, MSD base or compliance charges, wastewater-strength classification, impervious area, stormwater rates, taxes, special-class rules, or utility schedules.
A credible assessment starts with at least 12 months of both provider records, meter details, operating patterns, compliance and strength lines, and the property’s impervious-area record. The calculator is directional and does not reproduce St. Louis block rates, MSD compliance, strength, or stormwater formulas.
Related commercial water decisions
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Compare another impervious-area stormwater line
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Separate fixed and usage-linked bill lines
Classify charges before applying a water-reduction assumption.
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Prepare a St. Louis bill audit
Collect meter, class, compliance, strength, and impervious-area evidence.
Review source and estimate boundaries
See how official facts, assumptions, and analysis are separated.
Frequently asked questions
What are St. Louis’s standard commercial water volume rates for 2026?
The cited City Water schedule charges $3.09 per CCF for the first 250 CCF, $2.42 for the next 19,750 CCF, and $1.55 above 20,000 CCF, plus meter-size readiness and any applicable additional lines.
What are MSD Project Clear’s current commercial sewer charges?
MSD lists a $32.41 monthly commercial base and $6.65 per CCF volume charge, plus account-dependent compliance and possible excess-strength charges.
Does lower water use reduce St. Louis commercial stormwater charges?
Not under the cited nonresidential formula. The $1.05 monthly charge per 1,000 square feet follows impervious area, not monthly metered water use.
Does 20% lower use mean 20% off the whole St. Louis utility bill?
No. Eligible water and wastewater volume lines can change, but readiness, base, compliance, strength, stormwater, taxes, special classes, and other account-specific lines follow separate rules or stay unchanged.
Primary source trail
Sources and retrieval details
Published: Current 2026 rate schedule · Effective: July 1, 2026 · Retrieved: July 14, 2026
Controlling official source for metered-customer coverage, quarterly readiness by meter size, standard quantity blocks, and additional or special-service boundaries.
Source URL: https://www.stlwater.com/customers/water-rates/
Published: Current commercial and industrial rate schedule · Effective: July 1, 2026 · Retrieved: July 14, 2026
Controlling official source for commercial base, volume, compliance, excess-strength, and implementation timing.
Source URL: https://msdprojectclear.org/customers/billing/rate-information/
Published: Current stormwater guidance · Effective: Current property treatment · Retrieved: July 14, 2026
Official source for the nonresidential impervious-area Stormwater Capital charge and separation from usage-based wastewater lines.
Source URL: https://msdprojectclear.org/customers/billing/stormwater-property-taxes/
Screen only the usage-linked exposure
The calculator is a directional first pass. It does not reproduce St. Louis block rates, MSD compliance or strength charges, stormwater, taxes, special classes, or another account-specific line.