WSP11430

• File Number: 8449
• Description: Platte River Projects
• State: CO
• Basin: South Platte
• Date: 5/1/1975
• Author: USACOE
• Title: Needs Identification and Supplement to the Plan of Study, Water and Related Land Resources Management Study
• Water Supply Pro - Doc Type: Publication

.

303(e) BASIN PLAN

The Comprehensive Water Quality Management Plan for the South

Platte River basin was completed during the last half of 1974 for

the Water Quality Planning Division of the Colorado Department of

Health. It covers the entire South Platte River basin drainage

in Colorado with the exception of the five-county Denver metro

area. The excluded counties are Adams, Arapahoe, Boulder, Denver,

and Jefferson. Figure 2 illustrates the boundaries of the basin

and the most important planning areas.

The recommendations for the upstream portion of the basin and

for the plains area include continued localized treatment and dis-

posal with upgrading of existing and future facilities to meet

secondary level discharge requirements. In the Larimer County-

Weld County region, the approved plan includes consolidation of

facilities in the Loveland and Greeley areas, nitrifying facilities

at Fort Collins and Windsor, movement of the Greeley discharge

to the South Platte River, and phosphorus removal at Estes Park.

This plan concentrates on the treatment of point sources

such as municipal and industrial discharges, and does not attempt

to solve nonpoint discharges such as irrigation return flows. It

recognizes that there is a total dissolved solids (TOS or salt)

problem for both the surface waters and ground waters which becomes

more serious as the water moves from the mountains to the South

Platte's crossing of the Nebraska-Colorado state line.

3-C PLAN
The Water Quality Management Report was completed and approved
in 1974. It covers the Denver metropolitan area which is shown in

.

19