Impaired Water - Silver School Br (Silver School Branch)
Green County, Wisconsin
SP14
880400
0.00 - 6.14
6.14
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
TMDL approved 2005.
Silver School Branch is located in northern Green County and is part of the Little Sugar River watershed. This fourmile
long stream flows to the south through predominantly agricultural land and drains into the Little Sugar River
southeast of Monticello. The lower three miles of Silver School Branch are currently listed on the 303 (d) list for
degraded habitat from sedimentation due to non-point source pollution. A fish survey from 1974 found one northern
pike and 10 other forage and minnow species, with creek chub and southern redbelly dace being the most common
seen, however, the stream has not been monitored in recent years. Silver School Branch is currently listed as a warm
water forage fishery, but is believed to have the potential to become a cold water fishery. However, current data is not
sufficient to determine overall potential of this stream. While mitigation of erosion and improvement in habitat of this
stream is desirable, further monitoring is required to determine the realistic potential for this stream.

This water was assessed during the 2018 listing cycle; available biological data do not indicate impairment according to 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).
Listing Details
Pollutant
Sediment/Total Suspended Solids
Listed For
Fish and Aquatic Life
Impairments
Degraded Habitat
Current Use
WWFF - Warmwater Forage Fishery
Listing Status
TMDL Approved
Attainable Use
Coldwater - aquatic life, spawning
Priority
Not Applicable
Designated Use
Coldwater - aquatic life, spawning
303(d) ID
435
Listing Date
4/1/1998
Impaired Water Notes
Silver School Branch is located in northern Green County and is part of the Little Sugar River watershed. This fourmile long stream flows to the south through predominantly agricultural land and drains into the Little Sugar River southeast of Monticello. The lower three miles of Silver School Branch are currently listed on the 303 (d) list for degraded habitat from sedimentation due to non-point source pollution. A fish survey from 1974 found one northern pike and 10 other forage and minnow species, with creek chub and southern redbelly dace being the most common seen, however, the stream has not been monitored in recent years. Silver School Branch is currently listed as a warm water forage fishery, but is believed to have the potential to become a cold water fishery. However, current data is not sufficient to determine overall potential of this stream. While mitigation of erosion and improvement in habitat of this stream is desirable, further monitoring is required to determine the realistic potential for this stream.
Date
6/28/2005

Impaired Water Notes
Silver School Branch (880400, miles 0-6.14) is part of the Sugar-Pecatonica River Basin and the sediment TMDLs were approved by the USEPA August 24, 2005.
Date
4/25/2005