WSP00491

• File Number: 8272.500
• Description: Colorado River Basin Salinity Control - Colo Dept of Public Health - WQCC and WQCD
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/7/1978
• Author: Dept of Health -WQCC
• Title: Implementation of the Colorado River Standards Through the NPDES Permit Program
• Water Supply Pro - Doc Type: Report/Study

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b. Cost of alternative plans in dollars per ton, of
salt removed from discharge.

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7. Such other information pertinent to demonstration of
non-practicability as the permitting authority may deem
necessary.

C. In determining what permit conditions shall be required, the
Department of Health shall consider the following criteria in-
cluding, but not limited to:

1. The practicability of achieving the 400 mg/l incremental
increase.

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2. Where the 400 mg/1 incremental increase is not determined
to be practicable:

a. The impact of the total proposed salt input of each
alternative on the lower mainstem in terms of tons per
year and concentration and the economic impact of the
increased salt load.

b. Costs per ton of salt removed from discharge of
eaGh alternative plan.

c. Capability of minimizing the salt discharge.

D. If, in the opinion of the Department of Health, the data base for
the municipal waste discharge is inadequate, the permit will contain
the requirement that the municipal waste discharger monitor the water
supply and the waste water discharge for salinity. Such monitoring pro-
gram shall be completed within 2 years and the discharyer shall then
present the information as specified above.

E. Requirements for establishing incremental increases may be waived
in those cases where the incremental salt load reaching the mainstcm
of the Colorado River is less than one ton per day or 350 tons per year
whichever is less. Evaluation will be made on a case-by~case, basis.

F. All new and reissued NPDES permits for all municipalities shall
require monitoring of the salinity of the intake water supply and
the wastewater treatment plant effluent in accordance with the fol-
lowing guidelines:

5 CCR 1002. 11

THE CODE OF COLORADO REGULATIONS

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