| Material Handling and Spill Prevention | Form: (02A )
400167948
7/21/2011 | Williams will ensure 110 percent secondary containment for any volume of fluids contained at well site during drilling and completion operations.
Williams will implement best management practices to contain any unintentional release of fluids.
Either a lined drilling pit or closed loop system will be implemented. |
| Interim Reclamation | Form: (02A )
400167948
7/21/2011 | PRODUCTION/RECLAMATION
• Remove well pad and road surface materials that are incompatible with post-production land use and re-vegetation
requirements
• Use only certified weed-free native seed in seed mixes, except for non-native plants that benefit wildlife
• Williams will use certified, weed free grass hay, straw, hay or other mulch materials used for the reseeding and
reclamation of disturbed areas.
• Install exclusionary devices to prevent bird and other wildlife access to equipment stacks, vents and openings.
• Reduce visits to well-sites through remote monitoring (i.e. SCADA) and the use of multi-function contractors.
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| Drilling/Completion Operations | Form: (02A )
400167948
7/21/2011 | DRILLING/COMPLETIONS BMP's
• Install and maintain adequate measures to exclude all types of wildlife (e.g., big game, birds, and small rodents)
from all fluid pits (e.g., fencing, netting, and other appropriate exclusion measures).
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| Planning | Form: (02A )
400167948
7/21/2011 | PLANNING BMP's
• Share/consolidate corridors for pipeline ROWs to the maximum extent possible.
• Maximize the utility of surface facilities by developing multiple wells from a single pad (directional drilling), and by
co-locating multipurpose facilities (for example, well pads and compressors) to avoid unnecessary habitat fragmentation
and disturbance of additional geographic areas.
• Minimize newly planned activities and operations within 300 feet of the ordinary high water mark of any reservoir,
lake, wetland, or natural perennial or seasonally flowing stream or river.
• Locate roads outside of drainages where possible and outside of riparian habitat.
• Avoid constructing any road segment in the channel of an intermittent or perennial stream
• Avoid new surface disturbance and placing new facilities in key wildlife habitats in consultation with CDOW.
• Minimize the number, length, and footprint of oil and gas development roads
• Use existing roads where possible
• Combine utility infrastructure (gas, electric, and water) planning with roadway planning to avoid separate utility
corridors
• Combine and share roads to minimize habitat fragmentation
• Where possible, consolidate pipeline and existing roadways, or roadways that are planned for development
• Place roads to avoid obstructions to migratory routes for wildlife, and to avoid displacement of wildlife from public to
private lands.
• Maximize the use of directional drilling to minimize habitat loss/fragmentation
• Maximize use of remote telemetry for well monitoring to minimize traffic
• Maintain undeveloped areas within development boundaries sufficient to allow wildlife to persist within
development boundaries during all phases of construction, drilling, and production.
• Minimize the duration of development and avoid repeated or chronic disturbance of developed areas. Complete all
anticipated drilling within a phased, concentrated, development area during a single, uninterrupted time period.
• Restrict oil and gas activities as practical during critical seasonal periods
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