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Food Service Industry

Bakeries, Food Producers & Distributors, Grocery Stores, Dairies, Breweries and Restaurants




Best Managment Practices:

Kitchen Waste Disposal oil, interceptors

Equipment Washing hoods and filters

Outside Building storage, garbage bins

Spill Clean Up

Links of Interest

All photos on this page depict vioaltions noted at Longmont businesses.

The byproducts of food-related cleaning can harm the environment if they enter the storm drainage system. Food businesses can cause harm by putting food wastes in leaking dumpsters, not cleaning up outdoor spills, cleaning equipment outside or washing spills down the storm drain.


Stormwater Quality Program

1100 S. Sherman Road

Longmont, CO 80501

Phone: (303) 651-8667

or email:

Open container of oil that is spilled on ground.  This is a potential discharge violation.Regulations

  1. The City of Longmont's Municipal Code prohibits the discharge of wastes to the storm drainage system. An illegal discharge is defined as anything that leaves the property. A potential discharge is defined as any spill or discharge on the property or any material stored in a way that could become an illegal discharge. (For example, an open bucket of oil.) (Municipal Code sections 14.26.050). Both are violations of the Code. Read more about storm drain prohibitions.
  2. The City of Longmont's Municipal Code prohibits the discharge of wastes to the environment. The wastes must be discharged to the City's sanitary sewer (Municial Code section14.08.205).
  3. Any discharge to the sanitary sewer must comply with the general and specific prohibitions of the Municipal Code. Call the Industrial Pretreatment Program at 303-651-8667 for more information.
  4. For power washing, the City of Longmont does not allow discharge of hauled wastes to the sanitary sewer. You may discharge the wastes to the sanitary sewer at the site of the operations only, if the business owners gives you permission to do so.
      • You cannot haul the wastes to another location for discharge the the City sewer.
      • You cannot discharge to any City sewer manhole or storm drainage inlet.
      • The City's wastewater treatment plant does not accept hauled wastes.

Click here for Best Management Practices.

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Restaurant hosed out kitchen floor to back door and down storm drain.  This is an illegal discharge violation.

Storm Drains vs Sanitary Sewers - What's the difference?


Storm Drainage System

The storm inlets (the grates located in streets) discharge to ditches, ponds, creeks and the river. These are designed to carry rain and snow melt away from our homes and streets. They are not connected to the wastewater treatment plant and there is no treatment of pollutants.

A discharge to the storm drainage system would be the same as discharging to our river.

Never discharge wastes to the street or any storm drain inlet.

Sanitary Sewers

Sanitary sewers carry wastewater from homes and businesses (toilets, tubs, sinks, etc.) to the wastewater treatment plant where the pollutants are removed. Harmful wastes that can cause sewer blockages or disrupt the treatment plant are prohibited (Municipal Code §14.08.310 –312).


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Best Management Practices (BMPS)

Kitchen Waste Disposal

General Pollution Prevention

Open recycled oil bin with spills on wall and ground.  This is a potential discharge violation.

Recycling Old Cooking Oil

Grease Interceptors

Soapy water from truck cleaning discharged to creek.  This is an illegal discharge violation.

Equipment Washing

Try to avoid washing equipment outside of the building. Washing inside allows you to discharge the rinse water to the sanitary sewer via the mop sink or floor drain.

Contact local car washes to see if you can use their self wash bays to wash equipment or discharge wastes. These have sand/oil interceptors to protect the sanitary sewers from blockages.

If you must wash equipment outside:

  1. Clean water that does not contain pollutants or cleaning agents may be discharged to the storm sewer system or better yet, to your landscape. For example, grocery carts may be rinsed off with clean water (no soap) outside.
  2. If the equipment is dirty, for example, grease laden kitchen equipment, and the rinse water becomes contaminated (even if soap is not used), it cannot be discharged to the storm drain or ground.
  3. Any contaminated rinse water or any wastes containing soaps/cleaning agents must be collected and discharged to the sanitary sewer via your interceptor.
  4. Conserve water - don't leave the hose on when not in use.
  5. Be a good neighbor- please don't allow wastes to enter your neighbors property or cause a public nuisance.
  6. When the job is done, clean up the area. Don't leave wastes or residues on the ground that could be washed into the storm drain during the next rain storm.
  7. If you are unsure, please call the Industrial Pretreatment Program at (303) 651-8667 for information.

Hood filters soaking in washwater, uncovered and outside.  This is a potential discharge violation.Hoods and Filters

Power Washing

Toxic Wastes Disposal

Overflowing dumpster can't be closed.  This is a potential discharge violation.Outside

Garbage Bins


Spilled milk in street gutter from local dairy.  This is an illegal discharge violation.

Parking Lot Maintenance

Storm Inlets


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Keep It Clean Partnership (for a listing of other Boulder County municipality contacts) (303) 441-1439.

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Pollution Prevention|Stormwater Program|Water Utilities|Public Works & Natural Resources|City of Longmont

This page was updated August 19, 2013
City of Longmont Public Works & Natural Resources
Stormwater Quality Program

Pollution Prevention Program