Environmental Assessment
Public Information Meeting – September 2010

• National Environmental Policy Act (NEPA) of 1969
• Requires that any project using federal funds must be environmentally and sociologically reviewed
– Provides detailed project description
– Describes multiple alternatives
– Discusses existing environmental and sociological setting
– Evaluates impacts on resources

2004 Plan Utah Lake
System Proposed Action

NEPA Process Action
Issue Notice of Intent
Public scoping meeting and start of 30-day public scoping period
Notice of Availability / Release Draft EA (Start of public review and 30-day public comment period)
Public information meeting
Extension of public comment period
Notice of Availability / Release Final EA
Complete design work and award construction contracts
Date
February 25, 2010
March 23, 2010
July 29 – Aug 30,
2010
September 16, 2010
Aug 30 - Sept 30,
2010
November 2010
Early 2011

• The ULS EIS was completed in September 2004.
• The No Action Alternative in the current EA was the preferred alternative in the EIS.

• Value Engineering Study Workshop completed in
December 2009 with the following recommendations
– 1) Avoid the geological slide area hazards along 1450 East and Foothill Drive.
– 2) Minimize the length of pipeline in 900 East and avoid the reach south of University Parkway if possible.
– 3) Reduce costs by using the shortest alignment that avoids (1) and (2) concerns.
– 4) Alignments evaluated in this EA are a combination of alignments recommended in the VE Study Report.

• Have not changed from those stated in the
ULS EIS.
• However, the proposed realignment would:
– Avoid active and historical landslides
– Reduce the risk associated with geologic faults
– Shorten the overall pipeline length

• Applicable to entire alignment
• Specifically discussed South of 2200 North
– Geologic Hazards
– Traffic
– Utilities
– Schools and Residences

Alternative 1
Geologic
Hazards
• Avoids Wasatch Fault and associated splays
• Geologic conditions may include liquefiable soils.
Mitigation measures would be incorporated into final design and construction planning.
Traffic
Utilities
• Seven Peaks Blvd, 700 N. and 2200 N. could be closed with local access only.
• 900 E could be restricted to one lane in each direction.
• 2320 N., 700 E, and 2270 N. (Opt A) would be closed with local access only.
• University Ave maintain current number of lanes.
• 700 N. has moderate utility congestion.
• 900 E and 2200 N have moderate to heavy congestion Electrical transmission line may need to be relocated along 900 E. Major storm drain crossings required along 900 E at 820 N and 900 N.
• University Ave has minimal utility congestion.
Overhead utilities include power, high-voltage power, and communication lines.
Schools &
Residence
• 3 schools (Wasatch Elementary, Rock Canyon
Elementary and Centennial Middle)
• Brigham Young University (BYU)
• Impacts residential homes that front the alignment primarily along 700 N and 2200 N. The majority of the alignment is located in major collector and arterial streets (900 East and University Ave)

Alternative 2
Geologic
Hazards
Traffic
Utilities
Schools &
Residence
• Avoids the Wasatch Fault and associated splays
• Geologic conditions include liquefiable soils. Mitigation measures would be incorporated into final design and construction planning.
• Residential streets south of 4525 N would be closed with local access only.
• 900 E could be restricted to one lane in each direction
• 4525 N between Canyon Rd and University Ave would be reduced to 1 lane with flagger or automatic traffic signal.
• Current number of lanes would be maintained in
University Avenue.
• 1200 E and Cherry Ln have moderate utility congestion. 2-inch gas line and short reaches of 4- and
6-inch water lines would likely be relocated.
• Timpview Dr and 4525 N have moderate to significant utility congestion. During construction 2-inch gas line and sections of storm drain would be relocated at Timpview
Dr, portions of 15-in irrigation line would be relocated at
4525 N.
• University Ave has minimal utility congestion. Overhead utilities. Approx. 85% of alignment, has 10- and 6-inch parallel sewers on both sides of street (no sewer lateral crossings)
• 3 schools (Rock Canyon Elementary, Timpview High, and Edgemont Elementary)
• Impacts residential homes along 1200 E, Apple Ave,
Cherry Ln, Timpview Dr, and sections of 4525 N. Option alignments primarily located in residential streets.

Alternative 3
Geologic
Hazards
• Crosses landslide shown on USGS map (Baker, 1964).
Alignment crosses ~1,200-ft length of landslide.
• Specific geotechnical investigation and design measures would be required to ensure stable final slope configuration
• Wasatch Fault appears to cross 1450 E alignment 4 or 5 times.
Faults not located with detail or accuracy. Trenching studies would be needed to identify fault locations (Golder, 2010).
• Golder Assoc evaluated the No Action/ Alt 3 in vicinity of
1450 E. Found pipeline construction on 1450 E presents least favorable alternative for pipeline integrity; potential geologic hazards (Golder, 2010). RB&G Engineering performed a geologic hazards analysis in May 2010. Hazard analysis supports Golder findings.
Traffic
Utilities
• Traffic considerations for Seven Peaks Blvd, 1450 E, 2200 N,
2320 N, and University Ave discussed in Alt 1. Descriptions would also apply to Alt 3 alignment.
• N Temple Dr (1450 E to1200 E) closed with local access. 1200
E to 900 E, would have 2 traffic lanes.
• Utility relocation and avoidance procedures along Seven Peaks
Blvd and 1450 E are described in the ULS EIS.
• 1450 E and N Temple Dr have moderate utility congestion.
1450 E contains parallel 8- and 16-inch water lines which restrict the width of corridor for the pipeline.
• Utility congestion along 2200 N, 2320 N, Canyon Rd, and
University Ave is discussed under Alt 1
Schools &
Residence
• 2 schools (Rock Canyon Elementary and Centennial Middle)
• Residential homes located along 1450 E, N Temple, and
2200 N.