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Heat Transfer Cleaning Operations

Step #1 Obtain State Permit

COG-600000 General MINDI

Step #2 Obtain Longmont

"Letter of Authorization"

General Information

Application (288 KB pdf)

Renewal Application (224 KB pdf)

Local Concerns

List of authorized businesses

CONTACT US

Stormwater Quality Program

1100 S. Sherman Street

Longmont, CO 80501

Phone: 303-651-8667

or email: water@ci.longmont.co.us

The State allows water from coil cleaning operations (no cleaning solutions or contaminants) to be discharged to state waters if a point source permit is obtained. Fees apply.

Wastewater from HTE cleaning operations that does not contain soaps, chemicals or pollutants may be discharged to the storm sewer only if:

  • The wastes are generated from only HTE cleaning operations and the discharger maintains a current permit from the State of Colorado, and
  • Written permission is obtained from the City of Longmont (303-651-8399 or 303-651-8667); and
  • The wastewater meets all requirements of Chapter 14.26 of the Municipal Code (storm drainage system) including Prohibitions and Exemptions (14.26.500); and
  • All Best Management Practices outlined in the State permit are met.

 

General Information about the "Letter of Authorization"

APPLICATION PROCESS TO OBTAIN LETTER OF AUTHORIZATION

  1. Complete an application (288 KB pdf). You must fill it out, sign and print. If you cannot download this pdf, call 303-651-8667 to obtain hard copy. Do not leave any blanks; use "not applicable". There are no application fees at this time. Submit completed form with original signatures to:

    Storm Water Quality Program- WWTP

    501 East 1st Avenue

    Longmont, CO 80501
    Copies, faxes and electronic versions are not accepted
    .

  2. Upon approval, the City will provide a letter of authorization. The permission expires in 90 days or when the State Permit expires, whichever comes first.
  3. To renew the permission, the applicant must submit a renewal application (224 KB pdf) to the above address.

LIST OF BUSINESSES THAT HAVE RECEIVED AUTHORIZATION:

Notes for 2011.

Notes
Expiration
Business Name
  12/31/14 CMS Mechanical Services
  12/31/14 Design Mechanical
  12/31/14 High Plains Mechanical
  12/31/14 Innovative Mechanical Systems
  12/31/14
MaiCon
  12/31/14 MTECH, Mechanical Technologies Group
  12/31/14 St. Vrain School District O&M
  12/31/14 Trane Rocky Mountain District

Companies must also have a current permit with the State of Colorado.

Table updated 2/14/11.

This list is for information only and does not indicate endorsement of any business by the City of Longmont.

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Other Concerns

IS THE STATE PERMIT NEEDED?

The State permit is required only if the wastes can enter the state waters directly or via a storm drainage system. If the water is discharged to the top of the roof or to landscaping and can in no way enter the storm drain or State waters (that is, it evaporates), the discharge is not considered a "point source" and a permit is not required.

ILLEGAL DISCHARGES

A "threatened discharge" is defined by the Longmont Municipal Code as any discharge of contaminants that could leave the site. (An "illegal discharge" is one that actually enters the storm sewer or State waters.) Therefore, any discharge of wastes to the roof or landscape that contains contaminants is a violation of the Municipal Code. These have the potential to leave the site during the next rain storm. The State process indicates that you do not need a permit for discharges that don't enter the storm drain, but fails to inform you of the potential violations if the wastes contains any contaminants.

BEST OPTIONS FOR CONTRACTS IN THE CITY OF LONGMONT

Collect the wastes and discharge them to the sanitary sewer on-site. Contact the IP Program at 303-651-8667.

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

Pollution Prevention Program