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COLORADO
<br />Department of public Water Quality Assessment
<br />Re Health b Environment
<br />The Trapper Mine outfalls 001, 002, 005, 008, 009, 011, 013, 014, 015, 016, 017, 018, 019, 020, 021, 022,
<br />023, 024 and 026 discharge to Johnson Gulch, No -Name Gulch, Coyote Gulch, Ute Gulch, Pyeatt Gulch,
<br />Buzzard Gulch, Grouse Gulch, Sage Gulch, Oak Gulch, Horse Gulch, Flume Gulch, Deal Gulch, which are
<br />stream segment COLCLY03b. This means the Lower Colorado Basin, Lower Yampa Sub -basin, Stream Segment
<br />03. This segment is composed of the "mainstem of Upper Johnson Gulch from the source to the confluence
<br />with Pyeatt Gulch at CO 107. Mainstems of Pyeatt Gulch, Ute Gulch, Castor Gulch, No Name Gulch, Flume
<br />Gulch, Buzzard Gulch, Coyote Gulch, Deal Gulch, Horse Gulch (BOTH), and Elk Gulch, including all tributaries
<br />from their source to their mouths". Stream segment COLCLY03b is classified for agriculture, aquatic life
<br />warm 2 and recreation class N.
<br />Trapper Mine outfalls 025 and 027 (027-stormwater only) discharge to Deacon Gulch and Jeffway Gulch,
<br />which are stream segment COLCLY03a.This segment is composed of "all tributaries to the Yampa River,
<br />including all wetlands, from a point immediately below the confluence with Elkhead Creek to a point
<br />immediately below the confluence with the Little Snake River, except for the specific listings in segments
<br />3b through 15, 17a, 17b and 18". Stream segment COLCLY03a is classified for agriculture, aquatic life warm
<br />2 and recreation class N.
<br />Table A-2 is a summary of the outfalls located at Trapper Mine. Aside from this table, only process water
<br />outfalls are discussed further in this WQA; all stormwater outfalls are discussed in the fact sheet.
<br />Table A-2
<br />WQA Outfall Summary for Trapper Mine
<br />Outfall
<br />Source Water
<br />Latitude°N
<br />Longitude°W
<br />Receiving
<br />Segment
<br />Downstream
<br />Stream
<br />Segment
<br />001
<br />Stormwater
<br />40.452496
<br />-107.582908
<br />Johnson Gulch
<br />COLCLY03b
<br />Yampa River
<br />002
<br />Process water
<br />40.449303
<br />-107.600169
<br />No -Name Gulch
<br />COLCLY03b
<br />from industrial
<br />waste pond,
<br />Stormwater
<br />Yampa River
<br />005
<br />Stormwater
<br />40.448611
<br />-107.616944
<br />Coyote Gulch
<br />COLCLY03b
<br />Yampa River
<br />008
<br />Stormwater
<br />40.417292
<br />-107.584774
<br />Ute Gulch
<br />COLCLY03b
<br />Williams Fork
<br />009
<br />Stormwater
<br />40.449864
<br />-107.565756
<br />Middle Pyeatt
<br />COLCLY03b
<br />Gulch
<br />Yampa River
<br />011
<br />Stormwater,
<br />40.451388
<br />-107.561666
<br />East Pyeatt
<br />COLCLY03b
<br />Mine Water,
<br />Gulch
<br />Spoil Spring
<br />Yampa River
<br />013
<br />Stormwater
<br />40.450573
<br />-107.567575
<br />West Pyeatt
<br />COLCLY03b
<br />Gulch
<br />Yampa River
<br />014
<br />Stormwater
<br />40.44283
<br />-107.619481
<br />Far East Buzzard
<br />COLCLY03b
<br />Gulch
<br />Yampa River
<br />015
<br />Stormwater
<br />40.45014
<br />-107.549675
<br />Grouse Gulch
<br />COLCLY03b
<br />Yampa River
<br />016
<br />Stormwater
<br />40.450077
<br />-107.546086
<br />Sage Gulch
<br />COLCLY03b
<br />Yampa River
<br />017
<br />Mine Water,
<br />40.445277
<br />-107.535833
<br />Oak Gulch
<br />COLCLY03b
<br />Stormwater
<br />Yampa River
<br />018
<br />Stormwater,
<br />40.419444
<br />-107.540277
<br />Horse Gulch
<br />COLCLY03b
<br />French drain
<br />below valley
<br />fill of spoil
<br />material
<br />I
<br />Williams For
<br />019
<br />Stormwater
<br />40.440113
<br />-107.527327
<br />West Flume
<br />COLCLY03b
<br />Gulch
<br />Yampa River
<br />Page 7 of 40
<br />4300 Cherry Creek Drive S., Denver, CO 80246-1530 X303-692-2000 www.coLorado.gov/cdphe/wqcd I ®�
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