California · FOG rules

Riverside, CA grease trap requirements

Official pumping rule: before 25% of capacity is used; full pump-out of all chambers. A FOG or wastewater permit is required. Quoted from the official source below — verify with your city.

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Last checked Nov 2, 2026 against City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12)

Program run by City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12). Hand-checked against source Report an error / rule changed

Quick answer

How often to pump: Before 25% of capacity is used; full pump-out of all chambers
Interceptor minimum / sizing: UPC sizing, 750-gallon minimum
Permit / fees: Permit required

From the official source(s) below, last checked 2026-11-02. Rules change; verify with your city.

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Tell us what you need and we'll send your request to the Featured grease trap service companies in Riverside, CA, with a copy to us. If there are none yet, it comes only to us and we may reply to help you find someone. Free, no obligation. For restaurants and for property, building and facility managers.

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How often does Riverside require grease trap pumping?

Riverside's pumping rule is quoted below from the official source. Want a heads-up before your next pump-out? Get free email reminders on Riverside's schedule. For restaurants and for property, building and facility managers. How reminders work

Riverside: the official sources we checked say “before 25% of capacity is used; full pump-out of all chambers”, but don't set a fixed pumping interval. Source: City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12), checked 2026-11-02.

The official sources we checked don't list a fine amount for Riverside. That doesn't mean there's no penalty.

We'll use every 90 days. That's our recommended schedule, not a legal requirement. Many programs also require pumping before grease and solids reach 25% of the trap's depth.

Business or building name* Email* City Last pump-out date* Trap type Trap size, if known My city requires every N days (optional)

Yes, email me free grease trap pump-out reminders from GreaseTrapRules for the business and city above: up to 3 emails before each due date. Reminders include a link to request quotes from local pumping companies; nothing is shared with any company unless I send a quote request myself or tick the optional sharing box below. I can unsubscribe in one click from any email. Privacy Policy Optional: let the Featured pumping companies for my city see my business name, city, email and next due date, so they can offer to book my pump-out. Off unless you tick it. You can turn it off any time by replying to any reminder email.

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Rules change; verify with your city. Summaries are plain-English restatements of the official source linked below; “Source says” shows the exact wording. Blank rows mean the sources we checked did not state that rule, not that there is no rule.

Riverside grease trap rules at a glance

Grease trap and FOG (fats, oils and grease) rules for restaurants in Riverside are set by City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12). Pumping: before 25% of capacity is used; full pump-out of all chambers. Sizing: UPC sizing, 750-gallon minimum. A FOG or wastewater permit is required. Keep pumping records or manifests on site for inspectors.

Of the 13 California programs we track, 4 state a pumping schedule and 9 require a permit. We have not verified a pumping company for Riverside yet; see California pumping companies. Compare all California cities.

Riverside grease trap & interceptor rules, line by line

Required trap / interceptor type	Not stated in the sources we checked
Sizing rule	Interceptors are sized and designed under the Uniform Plumbing Code with a 750-gallon minimum (RMC 14.12.260 covers access, tees and sample box). ✓ checked against source
Pumping / cleaning frequency	An interceptor is not properly maintained if its fluid capacity is reduced by more than 25% by floating material, sediment, oil or grease (RMC 14.12.270). When cleaned, the entire contents of all chambers and the sample box must be removed. Enzymes or products that emulsify grease are not allowed. ✓ checked against source
Permit required?	Restaurants may not discharge to the sewer without first getting a written determination of interceptor requirements from the Director (RMC 14.12.275), based on a discharge survey. Permits must be posted with other required permits. ✓ checked against source
Permit & program fees	Not stated in the sources we checked
Inspections	Environmental Compliance inspectors visit restaurants regularly and check drains, interceptors, waste oil containers and records (RMC 14.12.215). Overflows must be reported immediately. ✓ checked against source
Record keeping	Keep a City-provided binder on site with inspection reports, interceptor and grease bin pumping records, and repair records. Pump receipts and waste manifests stay in the binder at least 3 years (RMC 14.12.230). ✓ checked against source
Pumper / hauler approval	Not stated in the sources we checked
Reporting portal	Not stated in the sources we checked
Fines & penalties	Not stated in the sources we checked
Program contact	951-351-6145 ✓ checked against source

Sources

https://riversideca.gov/publicworks/sites/riversideca.gov.publicworks/files/City%20of%20Riverside%20SSMP%20rev%202022%20%281%29.pdf · checked 2026-11-02
https://riversideca.gov/publicworks/sites/riversideca.gov.publicworks/files/pdf/BMP-FOR-RESTAURANTS.pdf · checked 2026-11-02

Featured spots in Riverside: 3 of 3 available. Free to be listed — pumpers pay a flat $59 only when a request we send becomes a booked job. For pumping companies · Free service record & manifest maker

Grease trap cleaning & pumping companies in Riverside, CA

No verified pumping company for Riverside yet. Free listings are sorted A–Z. A listing is not an endorsement.

Pump traps in Riverside? Free paperwork for every job. Make a service record or manifest PDF with the record fields Riverside's rules ask for, signed on your phone and ready to send the restaurant.

Make a Riverside service record

Before you book: ask for a full pump-out (not a skim) and a signed manifest for every service, and keep it on site for inspectors.

Be the recommended pumper here. Top-pick pumpers get first look at quote requests from Riverside kitchens. Listing is free; you pay a flat $59 only when a request we send becomes a booked job — under a short written agreement first, and nothing for leads that don’t book. 3 of 3 spots left
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Size your interceptor

Use the grease interceptor sizing calculator (UPC, IPC and PDI methods), then confirm Riverside's own minimums above. Not sure how often to pump? Read how often to pump a grease trap.

Riverside grease trap FAQ

How often do grease traps have to be pumped in Riverside, CA?

Pump before 25% of capacity is used; full pump-out of all chambers. Source: City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12), checked 2026-11-02. Rules change; confirm with the local sewer authority.

What size grease interceptor is required in Riverside?

UPC sizing, 750-gallon minimum, per the official source. Your plumbing official can require more.

Do restaurants in Riverside need a grease trap permit?

Permit required, per the official source checked 2026-11-02.

Who enforces grease trap rules in Riverside, CA?

City of Riverside Public Works, Environmental Compliance Section (Riverside Municipal Code Ch. 14.12) (program contact: 951-351-6145). Contact them for permits, inspections and approved haulers.

Nearby California cities

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Grease trap guides

For property and building managersTenant vs landlord, shared interceptors, records How often to pumpThe 25% rule and city schedules FOG inspection checklistWhat inspectors check Printable maintenance logPlus record-keeping rules All guidesSizing, trap vs interceptor, cost factors

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