2014-09-12_REVISION - C1996083 - Laserfiche WebLink

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• Adequate sediment control devices, such as silt fences or straw wattles composed of native substances or other effective Best Management Practices (BMPs), will be placed down slope from the pads and access roads to prevent potential sedimentation effects to West Terror Creek.. • In order to ensure that BMPs relating to the control of sediment from disturbed sites are in place and functional, lessee will, during major runoff periods, use an independent contractor to inspect the lessee's well pad sites and access roads within the Terror Creek watershed. The independent contractor will contact lessee, USFS, and the BLM (970 - 240- 5300), within two business days of discovering sediment control measures that are missing or non - functional. Lessee will have three business days to correct the problem. Ineffective measures will be redesigned and replaced after consultation with USFS and BLM. For each year that lessee operates under the subject Biological Assessment (BA), lessee will submit the compiled monthly inspection reports to BLM Uncompahgre Field Office (UFO) by September 30. In the event new sediment control methods are identified or current practices are not working as intended, adaptive management will be used to implement methods that are effective at eliminating offsite movement of soils and sedimentation into resident streams. • At any time during drilling activities, until successful reclamation or continuing into the future, the point of access to temporary roads will be blocked with gates to prevent vehicles, including Off- Highway Vehicles (OHVs), from using them. Signs identifying the road closure will be placed at the barricades. To prevent mortality of GBCT due to pumping from the East Fork of Terror Creek, the conservation measures are defined as: pumping during the June and July period will require the use of a screened pump intake, with a maximum %4 inch size mesh. For the August through September period, when GBCT fry will be present in the stream, pump intakes will be screened with no larger than 1116th mesh screen. The screen will not be confined to just the pump intake, but must cover a larger area, such as a cylinder or box design which has at least 5 times the surface area of the pump intake. The lessee must submit the final design for this screening fixture to the USFS and BLM fisheries biologists for their approval. • During the June through September period, if the flows in East Terror Creek drop below the ten year mean monthly flow for October (1.0 efs), lessee will not pump water from the East Fork of Terror Creek. • To prevent impacts to GBCT fry and fingerlings, pumping will not take place during the base flow (low flow) periods of the year — October through March. • No vegetation will be removed from the riparian zone of the streams in the Terror Creek watershed. • Within the Terror Creek watershed, only fresh water, free of chemicals or other contaminants, will be used for dust abatement activities. • 'Within the Terror Creek watershed, additional crossings of perennial streams will not be constructed. 5