Service price ranges
| Unit | Size | Typical cost per service* | Usual rhythm in Stockton |
|---|---|---|---|
| Under-sink trap | 20–50 gal | $135–$240 | every 2–5 weeks |
| Large indoor trap | 50–100 gal | $190–$320 | every 3–6 weeks |
| Interceptor | 500–1,000 gal | $325–$700 | 25% rule or 3 months, whichever first |
| Large interceptor | 1,500–3,000 gal | $550–$1,300 | quarterly cap; often sooner |
*Ranges for scheduled service, national-plus-California cost basis, shown so you can sanity-check any quote including ours. No Stockton operator we could find publishes prices; aggregator estimates for the Modesto area cluster around $300–$460 for a standard job. Disposal is a real line item here: the Regional Wastewater Control Facility charges haulers $37.86 per 1,000 gallons plus $80 per trip (FY 2026-27 fee schedule), and that cost is inside every honest quote. Call (209) 292-2953 for a flat number on your unit.
Calculator: when does the 25% rule bind you?
Is the trap big enough?
What not pumping costs
| Item (City of Stockton MUD fee schedule, effective 7/1/2026) | Amount |
|---|---|
| Fats, Oils and Greases inspection fee | $148.00 |
| Fats, Oils and Greases re-inspection fee | $200.00 |
| FOG administrative citation, first occurrence | $293.00 |
| FOG administrative citation, second or subsequent | $729.00 |
| Grease mitigation fee (waiver holders) | formula — based on crew and truck hourly rates × line segments × cleanings per year |
Those are the administrative numbers. The ordinance adds the rest: each day a violation continues is a separate offense, the city can clean your interceptor and bill you jointly with your landlord, and sewer service can be suspended for maintenance violations. The full picture →