WSP10860

• File Number: 8274.400
• Description: Colorado River Basin Salinity Control - General Basinwide Salinity Issues - NPDES
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 4/1/1992
• Title: Colorado River Salinity Standards Compliance at The La Plata Mine - NPDES Permit NM0029505 - New Mexico
• Water Supply Pro - Doc Type: Report/Study

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II.

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III.

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Consideration should be given to the possibility that
the groundwater, if not intercepted, normally would
reach the Colorado River System in a reasonable time
frame, An industry desiring such consideration must
provide detailed information including a description
of the topography, geology and hydrology. Such
information must include direction and rate of
groundwater flow, chemical quality and quantity of
groundwater, and the location, quality and quantity
of surface streams and springs and quantity of
surface streams and springs that might be affected,
If the information adequately demonstrates that the
groundwater to be intercepted normally would reach
the river system in a reasonable time frame and would
contain approximately the same or greater salt load
than if intercepted, and if no significant localized
problems would be created, then the permitting agency
may waive the "no-salt" discharge requirement,

In those situations where the discharge does not meet
the criteria in I or II above, the applicant will be
required to submit the following information for
consideration:

A. Description of the topography, geology and
hydrology, Such information must include the
location of the development, direction and rate
of groundwater flow, chemical quality and
quantity of groundwater, and relevant data on
surface streams and springs that are or might be
affected. This information should be provided
for the conditions with and without the project.

B. Alternative plans that could substantially reduce
or eliminate salt discharge, Alternative plans
must include:

1. Description of water rights, including
beneficial uses, diversions and consumptive
use quantities,

2, Description of alternative water supplies,
including provisions for water reuse, if any,

3, Description of quantity and quality of
proposed discharge.

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4, Description of how salts removed from
discharges shall be disposed of to prevent
their entering surface waters or groundwater
aquifers,

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