Current through Register Vol. 63, No. 3, March 1, 2024
When required as provided in OAR 340-239-0100 through
340-239-0800, the owner or operator of a landfill must comply with the
recordkeeping and reporting requirements in this rule.
(2) Recordkeeping Requirements.
(a) A landfill owner or operator subject to
this division must maintain the following records for at least five years:
(A) All gas collection system downtime
exceeding five days, including dates of the downtime, individual well shutdown
and disconnection times, the reason for the downtime, and any corrective
actions conducted in response to the downtime;
(B) All gas control system downtime in excess
of one consecutive hour, the reason for the downtime, the length of time the
gas control system was shutdown, and any corrective actions conducted in
response to the downtime;
(C) All
instantaneous surface readings of 100 ppmv methane or greater. All exceedances
of the limits in OAR 340-239-0100(6)(b) and 340-239-0200, including the
location of the leak (or affected grid), leak concentration in ppmv methane,
date and time of measurement, the action taken to repair the leak, date of
repair, any required remonitoring and the remonitored concentration in ppmv
methane, wind speed during surface sampling, and the installation date and
location of each well installed as part of a gas collection system
expansion;
(D) Any positive
wellhead gauge pressure measurements, the name of the individual that conducted
the actions, the date and time of the measurements, the well identification
number, and the corrective action taken;
(E) Each wellhead temperature monitoring
value of 62.8 degrees Celsius (145 degrees Fahrenheit) or above, each wellhead
nitrogen level at or above 20 percent, and each wellhead oxygen level at or
above 5 percent;
(F) Monthly solid
waste acceptance rate, for active landfills or landfills that have accepted
waste within the last five years;
(G) The current amount of waste-in-place
including waste composition;
(H)
The nature, location, amount, and date of deposition of nondecomposable waste
for any landfill areas excluded from the collection system;
(I) Results of any performance tests
conducted pursuant to OAR 340-239-0110(2)(f);
(J) Descriptions of mitigation measures taken
to prevent the release of methane or other emissions into the atmosphere:
(i) When solid waste was brought to the
surface during the installation or preparation of wells, piping, or other
equipment;
(ii) During repairs or
the temporary shutdown of gas collection system components; and
(iii) When solid waste was excavated and
moved;
(K) Any
construction activities pursuant to OAR 340-239-0300. Records must contain the
following information:
(i) A description of
the actions being taken, the areas of the landfill that will be affected by
these actions, the reason the actions are required, and any landfill gas
collection system components that will be affected by these actions;
(ii) Construction start and finish dates,
projected equipment installation dates, and projected shut down times for
individual gas collection system components; and
(iii) A description of the mitigation
measures taken to minimize methane emissions and other potential air quality
impacts;
(L) For any
root cause analysis for which corrective actions are required, records of the
root cause analysis conducted, the corrective action analysis, the date for
corrective action(s) already completed following the positive pressure reading
or high temperature reading, for action(s) not already completed, a schedule
for implementation, including proposed commencement and completion dates, and a
copy of any comments or final approval on the corrective action analysis or
schedule from DEQ;
(M) The
equipment operating parameters specified to be monitored under OAR
340-239-0600(2) as well as records for periods of operation during which the
parameter boundaries established during the most recent performance test are
exceeded. The records must include the following information:
(i) For enclosed flares, all 3-hour periods
of operation during which the average temperature difference was more than 28
degrees Celsius (or 50 degrees Fahrenheit) below the average combustion
temperature during the most recent performance test at which compliance with
OAR 340-239-0110(2)(b) and OAR 340-239-0110(2)(c) was determined;
(ii) For any owner or operator who uses a
boiler or process heater with a design heat input capacity of 44 megawatts per
hour (150 million British thermal units per hour) or greater to comply with OAR
340-239-0110(2)(c), all periods of operation of the boiler or process heater
(e.g., steam use, fuel use, or monitoring data collected pursuant to other
federal, State, local, or tribal regulatory requirements), readily accessible
continuous records of the equipment operating parameters specified to be
monitored in OAR 340-239-0600(2) and up-to-date, readily accessible records for
periods of operation during which the parameter boundaries established during
the most recent performance test are exceeded;
(iii) For open flares, continuous records of
the flame or flare pilot flame monitoring, and up-to-date, readily accessible
records of all periods of operation in which the flame or flare pilot flame is
absent; and
(iv) The indication of
flow to the control system and the indication of bypass flow or records of
monthly inspections of car-seals or lock-and-key configurations used to seal
bypass lines;
(N) All
collection and control system exceedances of the operational standards; the
reading in the subsequent month, whether or not the second reading is an
exceedance; and the location of each exceedance;
(O) Landfill owners or operators who convert
waste-in-place from volume to mass, must keep readily accessible, records of
the annual recalculation of site-specific density, design capacity, and the
supporting documentation;
(P)
Landfill owners or operators demonstrating that site-specific surface methane
emissions are below 200 ppmv by conducting surface emission monitoring under
OAR 340-239-0100(6)(b) must keep for at least five years up-to-date, readily
accessible records of all surface emissions monitoring and information related
to monitoring instrument calibrations conducted according to sections 8 and 10
of Method 21 of appendix A of 40 C.F.R. Part 60 , including all of the
following items:
(i) Calibration records,
including:
(I) Date of calibration and
initials of operator performing the calibration;
(II) Calibration gas cylinder identification,
certification date, and certified concentration;
(III) Instrument scale(s) used;
(IV) A description of any corrective action
taken if the meter readout could not be adjusted to correspond to the
calibration gas value; and
(V) If
an owner or operator makes their own calibration gas, a description of the
procedure(s) used;
(ii)
Digital photographs of the instrument setup, including the wind barrier. The
photographs must be accurately time and date-stamped and taken at the first
sampling location prior to sampling and at the last sampling location after
sampling at the end of each sampling day;
(iii) Timestamp of each surface scan reading
which must be detailed to the nearest second, based on when the sample
collection begins and log for the length of time each sample was taken using a
stopwatch (e.g., the time the probe was held over the
area);
(iv) Location of each
surface scan reading. The owner or operator must determine the coordinates
using an instrument with an accuracy of at least four meters. Coordinates must
be in decimal degrees with at least five decimal places;
(v) Monitored methane concentration (ppmv) of
each reading;
(vi) Background
methane concentration (ppmv) after each instrument calibration test;
(vii) For readings taken at each surface
penetration, the unique identification location label matching the label
specified in subparagraph OAR 340-239-0700(2)(a)(P) (iv); and
(viii) Records of the operating hours of the
gas collection system for each destruction device;
(Q) For each owner or operator reporting
leachate or other liquids addition under OAR 340-239-0700(3)(g), keep records
of any engineering calculations or company records used to estimate the
quantities of leachate or liquids added, the surface areas for which the
leachate or liquids were applied, and the estimates of annual waste acceptance
or total waste in place in the areas where leachate or liquids were
applied;
(R) The date of initial
placement of waste in newly constructed landfill cells; and
(S) Documentation of any component leaks
above 250 ppmv methane detected pursuant to OAR 340-239-0600(2)(c) and all
repairs performed in response to any component leaks above 500 ppmv.
(T) The maximum design capacity of the
landfill.
(b) The
landfill owner or operator must maintain the following records for the life of
the control system equipment, as measured during the initial performance test
or compliance determination. Records of subsequent tests or monitoring must be
maintained for a minimum of five years. Records of the control device vendor
specifications must be maintained until removal:
(A) The density of wells, horizontal
collectors, surface collectors, or other gas extraction devices determined
using the procedures specified in OAR 340-239-0110(1)(a);
(B) The expected gas generation flow rate as
calculated pursuant to OAR 340-239-0800(5);
(C) The percent reduction of methane achieved
by the control device determined pursuant to OAR 340-239-0800(6);
(D) For a boiler or process heater, the
description of the location at which the collected gas vent stream is
introduced into the boiler or process heater over the same time period of the
performance test;
(E) When an owner
or operator subject to the provisions of this division is demonstrating
compliance with OAR 340-239-0110(2) through use of an enclosed combustion
device other than a boiler or process heater with a design heat input capacity
equal to or greater than 44 megawatts per hour (150 million British thermal
units per hour):
(i) The average temperature
measured at least every 15 minutes and averaged over the same time period of
the performance test; and
(ii) The
percent reduction of methane determined as specified in OAR 340-239-0800(6)
achieved by the control device;
(F) For an open flare, the flare type (i.e.,
steam-assisted, air-assisted, or non-assisted), all visible emission readings,
heat content determination, flow rate or bypass flow rate measurements, and
exit velocity determinations made during the performance test as specified in
40 C.F.R.
§
60.18, which is incorporated by
reference herein; and records of the flare pilot flame or flare flame
monitoring and records of all periods of operations during which the pilot
flame or the flare flame is absent;
(G) An up to date map showing each existing
and planned gas collector in the system;
(H) Where an owner or operator subject to the
provisions of this division is demonstrating compliance with OAR
340-239-0110(2) through use of a landfill gas treatment system:
(i) Bypass records. Records of the flow of
landfill gas to, and bypass of, the treatment system; and
(ii) Site-specific treatment monitoring plan
meeting the requirements of OAR 340-239-0110(2)(d)(C).
(I) An up-to-date, readily accessible plot
map showing each existing and planned collectors in the system and providing a
unique identification location label for each collector.
(c) Bioreactor moisture content calculations:
Any landfill owner or operator conducting calculations to determine the
moisture content of a bioreactor must document the calculations and the basis
of any assumptions. made to make such calculations. The records of the
calculations must be kept for at least five years and until liquids addition
ceases.
(d) Record Retention: The
landfill owner or operator must maintain copies of the records and reports
required by this division and provide them to DEQ within five business days
upon request.
(3)
Reporting Requirements.
(a) Closure
Notification. Any owner or operator of a landfill that has ceased accepting
waste must submit a Closure Notification to DEQ within 30 days of waste
acceptance cessation, and:
(A) The Closure
Notification must include the last day solid waste was accepted, the
anticipated closure date of the landfill, and the estimated waste-in-place;
and
(B) DEQ may request additional
information as necessary to verify that permanent closure has taken place in
accordance with the requirements of any applicable regulations, requirements,
or ordinances in effect at the time of closure.
(b) Equipment Removal Report. The landfill
owner or operator must submit a gas collection and control system Equipment
Removal Report to DEQ 30 days prior to well capping, removal or cessation of
operation of the gas collection, treatment, or control system equipment. The
report must contain the following information:
(A) A copy of the Closure Notification
submitted pursuant to OAR 340-239-0700(3)(a);
(B) A copy of the Initial Performance Test
Report or other documentation demonstrating that the gas collection and control
system has been installed and operated for a minimum of 15 years, unless the
owner or operator can demonstrate to the satisfaction of DEQ that due to
declining methane rates the landfill is unable to operate the gas collection
and control system for a 15-year period; and
(C) Surface emissions monitoring results
needed to verify that landfill surface methane concentration measurements do
not exceed the limits specified in OAR 340-239-0200.
(c) Semi-Annual Report. A landfill owner or
operator subject to this rule, must prepare semi-annual reports for the periods
of January 1 through June 30 of each year, unless otherwise approved in writing
by DEQ. The Semi-Annual Report will be due on July 30, unless otherwise
approved in writing by DEQ. The Semi-Annual Report must contain the following
information:
(A) All instantaneous surface
readings of 100 ppmv or greater. All exceedances of the limits in OAR
340-239-0100(6)(b), 340-239-0200 and 340-239-0600(2)(c) including the location
of the leak (or affected grid), leak concentration in ppmv, date and time of
measurement, the action taken to repair the leak, date of repair, any required
remonitoring and the remonitored concentration in ppmv, wind speed during
surface sampling, the concentration recorded at each location for which an
exceedance was recorded in the previous month, and the installation date and
location of each well installed as part of a gas collection system
expansion;
(B) For any corrective
action analysis for which corrective actions are required in OAR
340-239-0600(3)(a) and 340-239-0600(3)(b) and that take more than 60 days to
correct the exceedance, the root cause analysis conducted, including a
description of the recommended corrective action(s), the date for corrective
action(s) already completed following the positive pressure or elevated
temperature reading, and, for action(s) not already completed, a schedule for
implementation, including proposed commencement and completion dates;
(C) All known, prevented, or suspected
subsurface landfill fire(s) along with potential causes and any efforts
conducted to avoid or put out the fire(s). Any positive pressure readings that
may have contributed to the known, prevented, or suspected fire;
(D) The number of times that applicable
parameters monitored under OAR 340-239-0110(2) or 340-239-0200, were exceeded
and when the gas collection and control system was not operating in compliance
with OAR 340-0110(2)(a) including periods of startup, shutdown, and
malfunction. For each instance, report the date, time, and duration of each
exceedance. Where an owner or operator subject to the requirements of this
division is demonstrating compliance with the operational standard for
temperature OAR 340-239-0600(3)(b), the owner or operator must provide a
statement of the wellhead operational standard for temperature and oxygen the
landfill is complying with for the period covered by the report. The report
must indicate:
(i) The number of times each of
those parameters monitored under OAR 340-239-0600(3)(b), were exceeded. For
each instance, report the date, time, and duration of each exceedance;
and
(ii) The number of times the
parameters for the site-specific treatment system in OAR 340-239-0110(2)(d)(C)
were exceeded;
(E)
Description and duration of all periods when the gas stream was diverted from
the control device or treatment system through a bypass line or the indication
of bypass flow as specified OAR 340-239-0110(2)(c);
(F) Description and duration of all periods
when the control device or treatment system was not operating and length of
time the control device or treatment system was not operating;
(G) All periods when the collection system
was not operating;
(H) The date of
installation and the location of each well or collection system
expansion;
(I) Each owner or
operator required to conduct enhanced monitoring in accordance with OAR
340-239-0800(8) for temperatures exceeding 62.8 degrees Celsius (145 degrees
Fahrenheit) must include the results of all monitoring activities conducted
during the period;
(J) For enclosed
combustors except for boilers and process heaters with design heat input
capacity of 44 megawatts per hour (150 million British thermal units per hour)
or greater, all three-hour periods of operation during which the average
temperature was more than 28 degrees Celsius (82 degrees Fahrenheit) below the
average combustion temperature during the most recent performance test;
and
(K) For boilers or process
heaters, whenever there is a change in the location at which the vent stream is
introduced into the flame zone.
(d) Annual Report. An owner or operator
subject to the requirements of this rule must prepare an Annual Report for the
period of January 1 through December 31 of each year. Each Annual Report must
be submitted to DEQ by February 15 of the following year, unless otherwise
specified by DEQ, but may not be due later than March 15. The Annual Report
must consist of the semi-annual and the following annual reporting
requirements:
(A) Landfill name, owner and
operator, address, and permit number as issued according to division 216 or
218;
(B) Total volume of landfill
gas collected (reported in standard cubic feet);
(C) Average composition of the landfill gas
collected over the reporting period (reported in percent methane and percent
carbon dioxide by volume);
(D) Gas
control device type, year of installation, rating, fuel type, and total amount
of landfill gas combusted in each control device;
(E) The date that the gas collection and
control system was installed and in full operation;
(F) The percent methane destruction
efficiency of each gas control device(s);
(G) Type and amount of supplemental fuels
burned with the landfill gas in each device, if applicable;
(H) Total volume of landfill gas shipped
off-site (MMscf), the composition of the landfill gas collected (reported in
percent methane and percent carbon dioxide by volume), and the recipient of the
gas;
(I) Most recent topographic
map of the site showing the areas with final cover and a geomembrane and the
areas with final cover without a geomembrane with corresponding percentages
over the landfill surface;
(J) The
information required paragraphs (2)(a)(A) through (2)(a)(E), (2)(a)(G),
(2)(a)(J) through (2)(a)(L) of this rule;
(K) Instrument specifications for all
instruments used for monitoring compliance with this division; and
(e) Waste-in-Place Report. An
owner or operator subject to the requirements of OAR 340-239-0100(1),
340-239-0100(2), 340-239-0100(3), or 340-239-0100(4) must prepare an initial
Waste-in-Place Report and annual Waste-in-Place reports each following year.
The initial Waste-in-Place Report must be submitted by October 1, 2022. Each
annual Waste-in-Place Report must be prepared for the period of January 1
through December 31 of each year and be submitted to DEQ by January 31 of the
following year. DEQ may extend this deadline through March 1 in the form of a
permit condition. The report also must include:
(A) Landfill name, owner and operator,
address, and the permit number as issued according to division 216 or
218;
(B) The landfill's status
(active, closed, or inactive) and the estimated waste-in-place, as of December
31 of the prior year, in tons;
(C)
A description of the known and assumed waste composition in the
landfill;
(D) The most recent
topographic map of the site showing the areas with final cover and a
geomembrane and the areas with final cover without a geomembrane with a
calculation of the corresponding percentage geomembrane coverage over the
landfill surface.
(f)
Methane Generation Rate Report. An owner or operator subject to the
requirements of OAR 340-239-0100(1), 340-239-0100(2), 340-239-0100(3), or
340-239-0100(4) must calculate the methane generation rate using the
calculation procedures specified in OAR 340-239-0800(2) and report the results,
along with a summary of efforts being implemented at the landfill to reduce
landfill gas emissions, to DEQ:
(A) By October
1, 2022 for landfills with greater than 200,000 tons waste-in-place;
(B) Within 90 days of reaching 200,000 tons
of waste-in-place;
(C) By March 15
of each subsequent year while waste-in-place is greater than 200,000 tons and
the methane generation rate is less than 664 metric tons (732 tons) per year.
The calculation, along with relevant parameters, must be provided as part of
the report; and
(D) The report must
include the results of a visual inspection of the landfill cover and any
actions done to fix leaks and minimize methane releases.
(g) Liquids Addition Report. An owner or
operator subject to OAR 340-239-0110 that has employed leachate recirculation
or added liquids based on a Research, Development, and Demonstration permit
(issued through Resource Conservation and Recovery Act, subtitle D, part 258)
within the last 10 years must submit to DEQ, annually, the following
information:
(A) Volume of leachate
recirculated (gallons per year) and the reported basis of those estimates
(records or engineering estimates);
(B) Total volume of all other liquids added
(gallons per year) and the reported basis of those estimates (records or
engineering estimates);
(C) Surface
area (acres) over which the leachate is recirculated (or otherwise
applied);
(D) Surface area (acres)
over which any other liquids are applied;
(E) The total waste disposed (megagrams) in
the areas with recirculated leachate, added liquids, or both, based on on-site
records to the extent data are available, or engineering estimates and the
reported basis of those estimates;
(F) The annual waste acceptance rates
(megagrams per year) in the areas with recirculated leachate, added liquids, or
both, based on on-site records to the extent data are available, or engineering
estimates;
(G) The initial report
must contain items in OAR 340-239-0700(2)(g)(A) through 340-239-0700(2)(g)(F)
per year for the initial annual reporting period as well as for each of the
previous 10 years, to the extent historical data are available in on-site
records, and the report must be submitted no later than 12 months after the
date of commenced construction, modification, or reconstruction;
(H) Subsequent annual reports must contain
items in OAR 340-239-0700(2)(g) (A) through 340-239-0700(2)(g)(F) for the
365-day period following the 365-day period included in the previous annual
report, and the report must be submitted no later than 365 days after the date
the previous report was submitted; and
(I) Landfills may cease annual reporting of
items in paragraphs OAR 340-239-0700(2)(g) (A) through 340-239-0700(2)(g)(F)
once they have submitted the Closure Notification in OAR
340-239-0700(3)(a).
(h)
Performance Test Report. For a control system designed and operated to meet the
requirements of this division, the owner or operator must submit a Performance
Test Report that establishes the reduction efficiency or parts per million by
volume no later than 180 days after the initial startup of the approved control
system using EPA Method 25 or 25C, 40 C.F.R. Part 60 , Appendix A, which is
incorporated by reference herein. The owner or operator must submit any
additional Performance Test Reports within 30 days after the date of completing
each performance test, including any associated fuel analyses. The Performance
Test Report must meet the following requirements:
(A) The Performance Test Report must include
the following information:
(i) A diagram of
the collection system showing collection system positioning including all
wells, horizontal collectors, surface collectors, or other gas extraction
devices, including the locations of any areas excluded from collection and the
proposed sites for the future collection system expansion;
(ii) The data upon which the sufficient
density of wells, horizontal collectors, surface collectors, or other gas
extraction devices and the gas mover equipment sizing are based;
(iii) The documentation of the presence of
asbestos or nondecomposable material for each area from which collection wells
have been excluded based on the presence of asbestos or nondecomposable
material;
(iv) The sum of the gas
generation flow rates for all areas from which collection wells have been
excluded based on nonproductivity and the calculations of gas generation flow
rate for each excluded area;
(v)
The provisions for increasing gas mover equipment capacity with increased gas
generation flow rate, if the present gas mover equipment is inadequate to move
the maximum flow rate expected over the life of the landfill; and
(vi) The provisions for the control of
off-site migration.
(D)
The control device must be operated within the parameter ranges established
during the initial or most recent performance test, the most recent permit, or
manufacturer written specifications. The operating parameters to be monitored
are specified in OAR 340-239-0600(2); and
(i) Collection and Control System Design
Plan. The Collection and Control System Design Plan must be prepared and
approved by a professional engineer and must meet the following requirements:
(A) The collection and control system as
described in the design plan must meet the design requirements in OAR
340-239-0110(1);
(B) If DEQ does
not approve or disapprove the Design Plan, or does not request that additional
information be submitted within 90 days of receipt, then the owner or operator
may continue with implementation of the Design Plan with the recognition that
the owner or operator is proceeding at their own risk. In the event that the
Design Plan is required to be modified to obtain approval, the owner or
operator must take any steps necessary to conform any prior actions to the
approved Design Plan; and
(C) If
the owner or operator chooses to demonstrate compliance with the emission
control requirements of this division using a treatment system as defined in
this division, then the owner or operator must prepare a site-specific
treatment system monitoring plan as specified in OAR
340-0110(2)(d)(C).
(j)
Amended Design Plan. The owner or operator who has already been required to
submit a design plan under OAR 340-239-0110(2) must submit an Amended Design
Plan to DEQ within 90 days of any event that requires a change to the Design
Plan as follows:
(A) At least 90 days before
expanding operations to an area not covered by the previously approved Design
Plan; and
(B) Prior to installing,
repairing, or expanding the gas collection system in a way that is not
consistent with the Design Plan previously approved by DEQ.
(k) Corrective Action reports:
(A) For corrective action that is required
according to OAR 340-239-0600(3) and is expected to take longer than 120 days
after the initial exceedance to complete, the landfill owner or operator must
submit the root cause analysis, corrective action analysis, and corresponding
implementation timeline to DEQ as soon as practicable but no later than 75 days
after the first measurement of positive pressure or temperature monitoring
value greater than 62.8 degrees Celsius (145 degrees Fahrenheit). The owner or
operator must receive DEQ approval regarding the plan for corrective action and
the corresponding timeline.
(B) For
corrective action that is required according to OAR 340-239-0600(3) and is not
completed within 60 days after the initial exceedance, the landfill owner or
operator must submit a notification to DEQ as soon as practicable but no later
than 75 days after the first measurement of positive pressure or temperature
exceedance.
(C) If a landfill owner
or operator cannot fully implement a corrective action described in paragraph
(3)(k)(A) or (3)(k)(B) of this rule within 60 days following the positive
pressure or excess temperature measurement for which the root cause analysis
was required, the owner or operator must also conduct a corrective action
analysis and develop an implementation schedule to complete the corrective
action(s) as soon as practicable, but no more than 120 days following the
positive pressure measurement.
(l) Instantaneous Surface Emission Monitoring
Report.
(A) A landfill owner or operator
conducting surface emission monitoring pursuant to OAR 340-239-0100(6)(b) must
submit an Instantaneous Surface Monitoring Report within 30 days after the
fourth consecutive quarter or monitoring if no exceedances are detected, or 30
days after a measured concentration of methane of 200 ppmv or greater,
whichever is first.
(B) An
Instantaneous Surface Emissions Monitoring Report required under paragraph
(3)(l)(A) or (3)(l)(B) of this rule must include documentation of the
following:
(i) Any corrective actions taken as
a result of the surface emissions monitoring and clearly identify the location,
date and time (to nearest second), average wind speeds including wind gusts,
and reading (in parts per million) of concentrations of methane above 100 ppmv,
other than non-repeatable, momentary readings. For location, the landfill owner
or operator must determine the latitude and longitude coordinates using an
instrument with an accuracy of at least four meters. The coordinates must be in
decimal degrees with at least five decimal places; and
(ii) The results of the most recent methane
generation rate calculation.
(m) 24-hour high temperature report. Where a
landfill owner or operator must demonstrate compliance with the operational
standard for temperature in OAR 340-239-0600(3)(b), a landfill gas temperature
measured at either the wellhead or at any point in the well is greater than or
equal to 76.7 degrees Celsius (170 degrees Fahrenheit), and the carbon monoxide
concentration measured is greater than or equal to 1,000 ppmv, the owner or
operator must report the date, time, well identifier, temperature and carbon
monoxide reading to DEQ within 24 hours of the measurement unless a higher
operating temperature value has been approved by DEQ for the well.
(n) Repairs and Temporary Shutdown
Notification. At least 30 days prior to a scheduled shutdown, any landfill
owner or operator that temporarily shuts down a gas collection and control
system per OAR 340-239-0110(5) must submit a notification of the shutdown that
includes a justification for the shutdown, the system component(s) that will
require shutdown, and the approximate timeline for the shutdown. If the
shutdown occurred due to catastrophic or other unplanned event as stipulated in
OAR 340-239-0110(5), the notification must be submitted within 10 days after
the shutdown.
(o) Root Cause
Analysis Report. If a landfill owner or operator cannot fully implement a
corrective action required according to OAR 340-239-0600(3) within 120 days
after the initial exceedance, the landfill owner or operator must submit the
root cause analysis and additional analysis and reporting according to OAR
340-239-0700(3)(k) as soon as practicable but no later than 75 days after the
first measurement of positive pressure or temperature monitoring value greater
than 62.8 degrees Celsius (145 degrees Fahrenheit). The root cause analysis
must include a thorough investigation of the landfill gas collection and
control system to determine the primary cause, and any other contributing
causes, of positive pressure or high temperature at a wellhead. The report must
include all factors investigated, methods used, and alternative causes that
were analyzed.
(p) Bioreactor
Moisture Content Report. If a landfill owner or operator calculates moisture
content to establish the date the bioreactor is required to begin operating the
collection and control system, within 90 days after the bioreactor achieves
40-percent moisture content, the landfill owner or operator must submit a
Bioreator Moisture Content Report that includes the results of the calculation,
the date the bioreactor achieved 40-percent moisture content by weight, and the
date the landfill owner or operator will begin collection and control system
operation.
(q) Notwithstanding any
other provision of this division, when any provision of this division requires
that any report, or information be submitted by a landfill owner or operator,
the report must contain certification by a responsible official of the truth,
accuracy, and completeness of the report. This certification, and any other
certification required under this division, must state that, based on
information and belief formed after reasonable inquiry, the statements and
information in the report are true, accurate, and complete.
(r) Design Capacity Report. An amended design
capacity report must be submitted providing notification of an increase in the
design capacity of the landfill, within 90 days of an increase in the maximum
design capacity of the landfill to meet or exceed 2.5 million megagrams and 2.5
million cubic meters. This increase in design capacity may result from an
increase in the permitted volume of the landfill or an increase in the
density.
Statutory/Other Authority: ORS
468.020, ORS
468A.025,
ORS
468A.040 & ORS
468A.050
Statutes/Other Implemented: ORS
468A.025,
ORS
468A.040 & ORS
468A.050