Board Meeting 05/05/1983

• Board Meeting Date: 5/5/1983
• Description: Minutes, Agenda, Memoradums May 5, 1983
• Board Meetings - Doc Type: Meeting

Case No. 82CW104
Water Division No. 2,
Findings, etc.
Page 4
The system will divert water from the alluvium of
the South Fork of the Arkansas River through the structures
described in paragraph 4 above directly into the Town ' s
municipal system. Water supplied through the municipal
system will either return through the central wastewater
collection system and be sent to the City of Salida
wastewater treatment plan via the existing interceptor , or
will be used for irrigation, in which case return flows will
be to the alluvial aquifer tributary to the South Fork of
the Arkansas River. Because the in-house component of the
municipal use under the <:I1)E,l..i cant ' s system will rcL.urn Lo
the stream system by means of the Salida wastewater
treatment system, this component of municipal diversions
will bypass water rights downstream from the location of the
two wells on the South Fork of the Arkansas River, but
upstream of the confluence of the South Fork with the Arkansas
mainstem. The applicant' s engineer has estimated that the
annual amount of depletion to the Arkansas River system,
in a dry year, exclusive of the effect of bypassing waste-
water, for a population of 500 will be 32 acre-feet.
Twenty-one (21) acre-feet of this depletion will occur
during the irrigation season which runs from June 1 through
October 31.
This estimate is based on an average water demand
for domestic use of 90 gallons per day per person with a
consumptive use for domestic , in-house use of 5% , and an
irrigation efficiency for use of water from the municipal
system for irrigation of 80% . In average years , little or
no water from the applicant ' s municipal system will be used
for outside irrigation because the irrigation water is
supplied through a community ditch with its own water right.
Only in dry years when that irrigation water right is out of
priority will water from the municipal system be used for
irrigation of lawns and gardens .
8 . Applicant proposes to fully compensate for the
depletions to the South Fork-Arkansas River system by augmen-
ting the surface flow of the South Fork of the Arkansas River
or the Arkansas mainstem as necessary with its water rights
described in paragraph 4 above. In order to protect Arkansas
River users , applicant will annually purchase 45 acre-feet of
Frying Pan-Arkansas Project water (or such greater amount as
the growth in applicant ' s water demands requires) from the
Southeastern Colorado Water Conservancy District and exchange