09/27/2012 - Minutes (3) Salt Lake City
Public Utilities Advisory Committee
Minutes
September 27, 2012
The Public Utilities Advisory Committee meeting was held at 7:00 a.m. Sep. 27, 2012 at 1530
South West Temple, Salt Lake City, Utah. Committee members present were Allen Orr, Larry
Myers, Dixie Huefner, Roger Player, and Kent Moore. Committee members Christy Cushing,
and Dwight Butler were absent. Salt Lake City Public Utilities employees present were Jeff
Niermeyer, Tom Ward, Jim Lewis, Florence Reynolds, Chuck Call, Bob Sperling, Dale
Christensen, Giles Demke, Joe Morgan, Mark Stanley and Zee Smith. Also in attendance were
Rusty Vetter, SLC Attorney's Office; Mike Wilson, MWDSLS; Mike Collins and Keith Larson,
Bowen Collins & Associates; Jim Olson, HDR; Trevor Lindley, Christina Osborn & Alan
Taylor, J-U-B Engineers; Jeff Upright, Stanley Consultants; Dru Whitlock and Jim Schwing,
CH2MHILL and M.C. Haik
Approve Minutes of June 28,2012 Meeting
Committee member Allen Orr moved and committee member Roger Player, seconded the
motion to approve the minutes of the June 28, 2012, meeting as amended. Committee member
Dixie Huefner abstained from voting. All other members present voted aye.
Financial Report—Jim Lewis
Mr. Jim Lewis briefed the Committee on the financial report for the period ending August 31,
2012. Mr. Lewis stated that all three funds are currently doing very well and are in good
financial positions at this time. He stated what a difference a couple of months can do for water
sales. He stated that we went from being $3 million below budget to $3 million above in just a
couple of months. He presented the water conservation chart showing the increase in water using
and stated that the Department probably will not make our conservation goal this year due to the
warm spring and summer weather. However, this past year our weather pattern was very similar
to 2000 and 2002 and without conservation our customers would have used 12 to 15 percent
more water.
The next slide presented was a comparison of revenue for all three funds versus budge. Mr.
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Lewis stated that water sales are up by 10% over last year, which relates to about $3 million in
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sales over last year at this time. The Sewer and Storm water revenue are both very similar to last
year.
The next slide presented was a comparison of operating costs, comparing last year with the
current budget amounts. Mr. Lewis stated that operating costs for the Water Utility are above last
year by $1 million due mostly to additional water purchases. The Sewer and Storm Water
Utilities are both below last year at this point in time. The Department has been doing a very
good job of controlling expenditures over the last couple of years.
The last slide presented listed the capital improvements for each of the funds as compared to
budget. The Water Utility has expended $1 million in capital improvements with $6 million
encumbered at the end of August. The Sewer Utility has expended $700,000 with $11 million
encumbered. The Storm Water Utility has expended $700.000 with $6 million encumbered.
Total for all three funds equal $2.4 million encumbered as of the end of August 2012.
Mr. Lewis stated that the Department will be mailing out a flyer to all City Customers explaining
the proposed New Street Lighting Fund and related fees. The Department will also be attending
Community Council District Meetings in October to explain the new fee and what is being
proposed. He handed out a copy of the proposed flyer for the Board to review.
Utah Sanitary Sewer Management Program—Mark Stanley
Wastewater Collection System
• 652 Total Miles of Pipe
• 35 Lift Stations
• 49,400 Service Connections
• 13,200 Manholes
USMP Background
• 1999 Fed SSO Advisory Committee Recommends CMON program
• 2001 EPA signs ruling making notice for CMOM
• Rule later withdrawn due to lack of Administration
• 2009 Under new Administration, EPA publishes guidance documents regarding CMOM
implementation. Individual EPA Regional Offices given authority to act on creation and
enforcement of CMON.
• Some States with regulatory authority develop own CMOM requirements.
• 2009 DWQ initiates discussion of CMOM or similar program. Committee of
representative Sewer Utilities is formed to begin work on CMOM program.
• 2009 First cut of proposed USMP program introduced by DWQ.
• 2010 Committee begins work on SSMP requirements.
• 2011 Committee finalizes SSMP requirements
• 2012 Committee finalizes SSMP Template.
• 2012 State DWQ implements USMP Rule.
USMP--What is it and why is it needed?
Utah Sanitary Sewer Management Program
• Consistent with the statutory requirement to develop programs which prevent control or N
abate pollution from reaching the waters of the state, the Utah Sanitary Sewer
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Management Program (USMPO is established.
• The DWQ Board has determined that the State will benefit from the development of a
sanitary sewer collection system management program. Such a program will reduce
sanitary sewer overflows (SSO) by giving added emphasis to the collection system
maintenance collection system analysis and program documentation.
• Sanitary sewer systems experience periodic failures resulting in discharges that may
affect waters of the State. There are many factors (including factors related to geology
design, construction methods and materials, age of the system, population growth, and
system operation and maintenance, which affect the likelihood of an SSO.
• A proactive approach that requires collection system operation to ensure a system-wide
operation, maintenance, and management plan is in place that will minimize the number
and frequency of SSOs within the state. This approach will in turn, decrease the risk to
human health and the environment caused by SSOs.
• Major causes of SSOs include: grease blockage, root blockages, sewer line flood damage,
manhole structure failures, vandalism, pump station mechanical failures, mechanical
failures, power outages, excessive storm or ground water inflow/infiltration, debris
blockage, sanitary sewer system age and construction material failures, lack of proper
operation and maintenance, insufficient capacity and contractor-caused damages. Many
SSOs are preventable with adequate and appropriate facilities, source control measures
and operation and maintenance of the sanitary sewer system.
USMP General Permit Components
• Permit is required for any sewer system owner or operator who owns or operates a
"sewer collection system".
• Requires a Sewer System Management Plan(SSMP).
• Permit requires certain monitoring, recording and record keeping.
• Defines compliance requirements, including penalties for violations of Permit conditions.
• Defines Spill & Leak reporting requirements and permit duty to mitigate.
• Annual Report Requirements.
Sanitary Sewer Management Plan
Major Requirement of USMP
SSMP Contents
• Organization information
• Use Ordinances, service agreements or other binding legal methods
• System Operations and Maintenance Plan
• System Design and Performance Provisions
• Sewer Overflow Response Plan (SORP)
• Fat, Oils, and Grease (FOG) Control Plan
• Sewer Evaluation and Capacity Assurance Plan (SECAP)
Permit Timeframe
• Notice of Intent(NOI) submission Now
• Completion of SSMP(excluding(SECAP) Sep. 30, 2014
• Completion of SECAP Sep. 30, 2015
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Cost of Implementing Nutrient Treatment @WWRP—Giles Demke
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Proposed Nutrient Limits
Nutrient Removal ^_Total Total Total
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Phosphorus Nitrogen Inorganic
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Sat Lake City Public Utilities Advisory Committee
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Project Drivers Nutrient Removal Basics
Total Soluble
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limits on permitted point sources by UDWQ Soluble 1nd;.,tli ,.
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Identify impacts specific to Salt Lake City Water Nitrogen
Reclamation Facility Organic
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Project Drivers Modification Approach
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• Portions of the Reclamation Facility infrastructure nearing TnaLlmgFilter/aawatedStdgeITr/asl P.c., a"'
end of its life - -
• Existing Trickling Filter Process in poor condition
Trickling Filters have structural&mechanical condition issues CONSTRUCT BASELINE SCENARIO
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Nitrogen
'Phased approach
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UDWQ Nutrient Removal Study - Operation and Maintenance Costs
Capital Costs
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UDWQ Nutrient Removal Study Tier 1N Nutrient Control
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Salt Lake City Nutrient Strategy
Benefit and Impacts Treatment Approach
Benefits
• Indeterminate at this point Salt Lake City can implement Phased upgrades
• Better water quality? • Upgrade or Replacement of Trickling Filter Process
• Improved wildlife habitat? regardless of Nutrient Removal
• Possible control of algae blooms in some receiving waters •Switching process to Activated Sludge aligns the Facility
Impacts for any future nutrient removal limits
• Inc reased power and carbon footprint •Upgrades can be phased for"interim"nutrient limits
• Impact to air quality on site as well as chemical •Future treatment process added only if nutrient limits
production/transport impacts reduce further
• Potential economic and environmental impacts GSL/
Farming Bay(good or bad)
Salt Lake City Nutrient Strategy
Regulatory Framework
Nutrient treatment capital costs will be s96M to
$25o]VI
Final nutrient regulatory limits will be determined
over time.
• State DWQ is currently in the process of determining
hcw best to approach the issue and develop a plan to
address nitrogen and phosphorus.
• Pressure from DWQ staff and EPA to follow national standard
•Salt Lake City actively participating in GSL nutrient
research(s5ok per year toward POTW group($35ok
total for group). Proposed increase in FY13/14
Chromium VI Study—Florence Reynolds
What is Chromium?
• Chromium occurs in two major forms Cr+3 and Cr+6
• Chromium-3 is an essential human dietary element and is found in many vegetables,
fruits, meats, grains and yeast.
• Chromium-6 occurs naturally in the environment from the erosion of natural chromium
deposits, and it can also be produced by industrial processes.
• There are demonstrated instances of chromium being released to the environment by
leakage, poor storage or inadequate industrial waste disposal practices.
Current Regulation
EPA regulates Total Chromium
• Includes all forms
• i ooppb, MCL
• Initially regulated due to dermatological issues
New concerns over possible impact of ingestion of Chromium 6
• EWG published study in public water supplies a)
• Identified as a possible carcinogen a.
• Inclusion in UCMR3
Identification of Local Chromium 6
EWG report indicated low levels of CR+6 in SLC water supply
• Level is in ppt range
• Equivalent to one drop of water diluted into 20 Olympic-size swimming pools
(50,000 m3)
• About three seconds out of a hundred thousand years
• City Creek highest hits at 300 ppt
Our Studies
• Analyzed full system using California method
• Low hits throughout system
• Highest in City Creek
• City Creek raw water analyzed
• Process waters analyzed
• Finished water analyzed
• Snow analyzed
Anticipated Regulatory Levels
• EPA review not expected until late 2014
• Anticipated Cr+6 regulatory level: l0ppb.
• Highest at City Creek 0.3 ppb.
Treatment Options
• Most require significant investment
o Membranes
o Reverse Osmosis
• Looking into Ferrous compound for possible reduction
o No change in process
o Primary coagulant composition change
o More information as testing is completed
Closed Session Under Utah Code Section 52-4-204
The Committee will consider a motion to enter into Closed Session for the purpose of discussing
the purchase, exchange, or lease of real property when public discussion of the transaction would
disclose the appraisal or estimated value of the property under consideration or prevent the
public body from completing the transaction on the best possible terms pursuant to Utah Code
Ann. Section 52-4-205(1)(d).
Committee member Dixie Huefner made a motion to go into Closed Session, Committee
member Kent Moore seconded the motion. With all members present voting aye. Allen Orr,
Larry Myers, Dixie Huefner, Roger Player and Kent Moore
Meeting Adjourned at 8:45
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