2020-09-24 Work Session
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Kodiak Island Borough
Assembly Work Session
Thursday, September 24, 2020, 6:30 p.m.
School District Conference Room
Work Sessions are informal meetings of the Assembly where Assembly members review the upcoming
regular meeting agenda packet and seek or receive information from staff. Although additional items not
listed on the work session agenda are discussed when intr oduced by the Mayor, Assembly, or staff, no
formal action is taken at work sessions and items that require formal Assembly action are placed on
regular Assembly meeting agenda. Citizen’s comments at work sessions are NOT considered part of the
official record. Citizen’s comments intended for the “official record” should be made at a regular Assembly
meeting.
Page
1. CITIZENS’ COMMENTS (Limited to Three Minutes per Speaker)
2. AGENDA ITEMS
a.
Presentation From Kodiak Economic Development Corporation
Founding Director, Aimee Williams, On (KEDC) Becoming
Permanent. (Cancelled at the meeting)
3 - 17
b.
Staff Update On KIB Landfill and Leachate Regulations and
Violations.
September 2020 Landfill and Leachate Treatment Plant Update -
Assembly Meeting Handout
c.
Discussion On Ordinance For COVID-19 Cost Sharing With The
City Of Kodiak.
3. MANAGER COMMENTS
4. CLERK’S COMMENTS
5. PACKET REVIEW REGULAR MEETING, OCTOBER 1, 2020
Items may be added during the work session for inclusion on the Regular Meeting agenda. The
item title needs to be provided/developed at the work session in enough detail to give assembly
and public reasonable notice.
AWARDS AND PRESENTATIONS
1. (3) to be added
PUBLIC HEARING
None.
Page 1 of 17
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www.kodiakak.us www.facebook.com/Kodiakislandborough @KodiakBorough
UNFINISHED BUSINESS
None.
NEW BUSINESS
CONTRACTS
1. Kodiak Economic Development Corporation (KEDC) Contract.
2. Contract FY2021-10 Approval Of One Year Contract With Matson Navigation Company
Of Alaska, Inc. For Metals Processing And Hauling.
RESOLUTIONS
None.
ORDINANCES FOR INTRODUCTION
1. Ordinance No. FY2021-21 Budget Amendment For CARES Funding To Provide
$272,200To The City Of Kodiak For Shared Covid-19 Expenses.
OTHER ITEMS
None.
6. ASSEMBLY MEMBERS COMMENTS
7. MAYOR’S COMMENTS
Page 2 of 17
September 2020 Landfill
and Leachate Treatment
Plant Update
September 24, 2020
Kodiak Island Borough Assembly Work Session AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 3 of 17
Overview
Discussion Of Current Proposed Fines
Multi Sector General Permit Storm Water
Leachate Treatment Plant Discharge
Discussion of Required Permits
NPDES –National Pollution Elimination System -EPA
APDES –Alaska Pollution Elimination System –Wastewater
MSGP –Multi Sector General Permit –Storm Water
MSWLF –Municipal Solid Waste Landfill –Class I Solid AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 4 of 17
ADEC –Compliance Order By Consent for
MSGP Storm Water
MSGP –Multi Sector General Permit for Storm Water Discharge
Specific Citations
Employee Training Documentation
Annual reporting Requirements
Site Inspections –Not Documented Properly
Missed Benchmark Sampling Reporting
Effluent Monitoring Frequency and Missed Required Reporting
Lack of Amendment of SWPPP (Storm Water Pollution Prevention Plan
Failure to Obtain Engineering Plan Approval
Avoid Bypass of Storm Water Retention Pond
Proposed Penalty –$100,679.51 AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 5 of 17
ADEC –Compliance Order By Consent
Corrective Actions FOR MSGP Storm
Water
Corrective Actions
Perform Comprehensive Update Of SWPPP
Submit Engineering Plans for Stormwater Retention Pond –Review Storage
Capacity
Iron Benchmark Exceedance Control Measure Review and Update Control
Measures
Storm Water Ammonia Sampling Frequency Increase
Corrective Actions for Compliance –Ammonia Discharge and Control
MDMR Employee Training and Correction AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 6 of 17
ADEC –Compliance Order By Consent
Corrective Actions for MSGP Storm Water
Resolutions to Issues
Aeration of Stored Compost –Add Wood Chips to Compost
Relocate Compost
Closure Project and Partial Closure –Original Landfill Portion
Perform Assessment of Site to Prevent Comingling of Storm Water and
Leachate with Analytical Sampling and Engineering Review
Removal of MSW (Municipal Solid Waste) Storm Water Channels
AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 7 of 17
ADEC –Compliance Order By Consent
Leachate Treatment Plant Discharge
APDES Permit –Alaska Pollution Discharge Elimination System
Specific to Discharge of Treated Leachate
Specific Citations
Failure to Notify of Anticipated Noncompliance–Seven Days Prior
Bypass of Storage Lagoon –November 12, 2018 –November 22, 2018
Bypass of Storage Lagoon –November 3, 2019 –November 17, 2019
WET Test Violation –Whole Effluent Toxicity
Quality Assurance Project Plan –No Written Notification AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 8 of 17
ADEC –Compliance Order By Consent
Leachate Treatment Plant Discharge
Specific Citations Continued
Failure to Notify –Engineering Plan –No Written Approval
Required QAPP (Quality Assurance Project Plan) Install of Phosphorus
Failure to Properly Operate Treatment Process (Calcium Deposition)
Failure to Provide Written Notice –Effluent Violation –pH –Total Residual Chlorine
–Out of Hold Times
Incorrect DMR’s (Discharge Monitoring Reports)
Over Discharge Limits –Biochemical Oxygen Demand, Benzoic Acid Concentrations
Proposed Fine -$20,000 AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 9 of 17
ADEC –Compliance Order By Consent
Corrective Actions Leachate Treatment
Plant Discharge
Corrective Actions
Update the Quality Assurance Project Plan (“QAPP”) to address all QAPP-related
violations identified.
Perform all whole effluent toxicity (“WET”) tests required by permit AK0053481.
Complete an engineering assessment of possible facility upgrades necessary to
maintain compliance with the ammonia discharge limits, calcification of
membranes, avoidance of future bypass and handling of additional solids.AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 10 of 17
Leachate Treatment
Plant –Facility Upgrade
Options
5 OPTIONS REVIEWED
AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 11 of 17
OPTIONS PRETREATMENT
DESCRIPTION
PROS CONS ESTIMATED COST
1. Chemical
Softening
NaOH to precipitate
Calcium /
Magnesium
Plate Clarifier
–Add HCL to
adjust pH.
Dewater
sludge
Chemical
purchase,
shipment, and
storage (NaOH
and HCL)
$1.2 M
Class 4
30%
2. Lagoon
Aeration
Install surface
aerators in
lagoon to strip
excess CO2, raise
pH, precipitate
CaCO3. Periodically
dredge sludge
from lagoon and
dewater
solids in Geotubes
Aeration used
instead of
chemicals
for calcium
removal
(softening)
Difficult solids
management,
and
acid addition
may
be required to
protect
downstream
treatment
process
$1.5 M
Class 4
30%AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 12 of 17
OPTIONS PRETREATMENT
DESCRIPTION
PROS CONS ESTIMATED
COST
3. Lagoon
Aeration
and
Clarifier
Install surface
aerators in
lagoon as in Option
2, but
pump mixed liquor to
lamella
clarifier for solids
removal.
Dewater clarifier
sludge in the
existing belt filter
press
Aeration used
instead of
chemicals
for calcium
removal
(softening);
easier
solids
management
than option #2
Acid addition
may
be required to
protect
downstream
treatment
process
$1.4 M
Class 4
30%AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 13 of 17
OPTIONS PRETREATMENT
DESCRIPTION
PROS CONS ESTIMATED
COST
4. Tank
Aeration
Aerate leachate is a
tank
rather than the
lagoon to strip
excess CO2, raise pH,
and
remove CaCO3.
Remove
precipitated solids in
a
lamella clarifier.
Dewater
solids in the existing
belt filter press
Aeration in
enclosed
tank instead
of
lagoon, less
energy
use, more
pH control
Lagoon storage
and
cleanout still
required during
periods of high
leachate flow
Not
available
Concept Only
AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 14 of 17
Additional Closure
Final Closure is Required for Final Landfill Maintenance
Interim Closure –Results in conversion of rainfall to storm water –reduction of leachate production
PERFORM ADDITIONAL FINAL CLOSURE -7260 SQUARE YARDS
PERFORM ADDITIONAL INTERIM CLOSURE –11870 SQ YDS
Estimated Cost -$1,132,331
Class 4 Estimate Range: 50% $ 1,698,496 -30% $ 792,631
See next slide for picture of proposed closure locations
AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 15 of 17
AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 16 of 17
Leachate Lagoon Overflow
The overflow of the leachate lagoon was caused by a combination of fouled
membranes, which limited LTP throughput, and extreme rainfall month after
month. This was compounded by failure of one of the influent pumps. KIB
intends to avoid future bypass of the LTP by implementing the following:
Stage 3 closure and interim landfill closure of the top deck to reduce volume of
leachate
Inspection and chemical cleaning of the membranes to maintain performance
Additional leachate storage available via temporary storage tanks
Maintenance of spare influent pumps KIB intends to construct a second leachate
storage lagoon when Cell 2 of the lateral expansion is opened.AGENDA ITEM #2.b.Staff Update On KIB Landfill and Leachate Regulations and Violations.Page 17 of 17
KODIAK ISLAND BOROUGH
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