Wastewater


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General Information

Located at 501 East 1st Avenue, the wastewater treatment plant is currently rated to treat up to 17 million gallons per day (MGD). It incorporates primary, secondary and tertiary treatment processes to remove organic and inorganic constituents found in wastewater. Treated plant effluent is discharged to the St. Vrain Creek at an average daily flow of approximately 8.0 MGD.

What's New at the Wastewater Treatment Plant?

A new 1.2 million gallon anaerobic digester went on-line in June 2009 that doubled the existing digestion capacity.
This added capacity will allow for on-site processing of all raw and activated sludge to a 'Class B' bio-solid for beneficial reuse through land application. Digesters are used to reduce the organic content of solids collected daily from the treatment process. The anaerobic process is heated and mixed to accelerate digestion and produces a methane gas that is used to run the boiler for heating the digester.

Wastewater Rate Schedule

Municipal Code 14.08.640: Metered residential, multifamily, small commercial and large commercial customers pay a monthly service charge plus a volume charge based on 1,000 gallons of water used as follows. Current rate information available on-line.

Municipal Code 14.08.655 Surcharge rate applicable to commercial accounts for excessive BOD, TSS & TKN. Current surcharge rates available on-line.

For other fees, review the Municipal Code - available on-line:

Municipal Code 14.08.675 Administrative fees applicable to commercial and industrial businesses are listed for Industrial Pretreament Program implementation.

Municipal Code 14.08.680 Private disposal system permit and inspection fee according to section 14.08.240 due upon filing of permit application.

Municipal Code 14.08.685 Building sewer permit and inspection fee according to section 14.08.250 due upon filing of permit application.

Directions

Take a tour on-line.

DIRECTIONS

From I-25, take the HWY 119 exit for Longmont. Head west towards town. At the first red light in town, HWY 119 becomes the Ken Pratt Extension. Continue straight to the second red light and make a right on Main Street (AKA HWY 287). Continue north on Main and make a right on 1st Avenue. Continue east on 1st Avenue which bends north and becomes Martin Street. Just past the bend, but before the railroad tracks, make a right onto the utility road that parallels the south side of the tracks. The treatment plant is located on the right at the end of this utility road.

Gates are open during regular business hours Monday through Friday.

Public Works & Natural Resources|City of Longmont

This page was updated June 8, 2010

City of Longmont Public Works & Natural Resources

Wastewater Treatment Plant