(Adopted April 5, 1985)(Amended April 10, 1998) (Amended March 17, 2000)

RULE 1150.1. CONTROL OF GASEOUS EMISSIONS FROM

MUNICIPAL SOLID WASTE LANDFILLS
TABLE OF CONTENTS

(a) Purpose (b) Applicability (c) Definitions (d) Active Landfill Design and Operation Requiremen ts (e) Active Landfill Sampling and Monitoring Require ments (f) Active Landfill Recordkeeping and Reporting Req uirements (g) Active Landfill Compliance Schedule (h) Inactive Landfill Requirements (i) Alternatives (j) Test Methods (k) Exemptions (l) Loss of Exemption
Attachment A 1.0 Subsurface Refuse Boundary Sampling Probes 2.0 Integrated Landfill Surface Sampling 3.0 Instantaneous Landfill Surface Monitoring 4.0 Landfill Gas Sample From Gas Collection System 5.0 Ambient Air Samples At The Landfill Property Bo undary Figure 1 Portable Integrated Bag Sampler Figure 2 Typical Landfill Walk Pattern Figure 3 Quality Control Sheet Figure 4 Bag Sample Custody Form Table 1 Carcinogenic and Toxic Air Contaminants (Co re Group) Table 2 Carcinogenic and Toxic Air Contaminants (Su pplemental

Group)
Attachment B
Attachment C

The reference numbers in the left hand margin of th e rule refer to sections of

40 CFR, Part 60, Subpart WWW (NSPS)1150.1 - 1 (Adopted April 5, 1985)(Amended April 10, 1998) (Amended March 17, 2000) (Amended April 1, 2011)

RULE 1150.1. CONTROL OF GASEOUS EMISSIONS FROM MUNI CIPAL

SOLID WASTE LANDFILLS

(a) Purpose
The purpose of this rule is intended to limitreduce non-methane organic compounds (NMOC), volatile organic compound (VOC) a nd toxic air contaminant (TAC) emissions from Municipal Solid Waste (MSW) landfill
emissionslandfills to prevent public nuisance and possible detriment to public health caused by exposure to such emissions. This rule also reduces methane emissions, a greenhouse gas.

(b) Applicability
This rule appliesis applicable to each any owner or operator of an active andor
inactive MSW landfill.

(c) Definitions Terms used but not defined inFor the purpose of this rule have the meaning given them in, the following definitions shall apply: (1) ACTIVE COLLECTION SYSTEM as defined by 40 CFR , Part 60,
Section 60.751 (Definitions):means a gas collection system that us es gas mover equipment. (1) ADMINISTRATOR means the Executive Officer of th e South Coast Air Quality Management District (District). (2) ACTIVE MSW LANDFILL means an MSW a Municipal Solid Waste
landfill that has received solid waste on or after November 8, 1987. (3) BACKGROUND means the local ambient concentratio n of total organic compounds (TOC) measured as methane determined by h olding the instrument probe approximately 5 to 6 feet above th e landfill surface. (4) CLOSED MSW LANDFILL means a disposal facilityMunicipal Solid
Waste landfill that has ceased accepting solid waste for disposal and was
closedconducted in accordance with all applicable federal, state a nd local statutes, regulations, and ordinances in effect at the time of closure. (5) COMPONENT LEAK means the concentration of methane m easured one half an inch or less from a component source that e xceeds 500 parts perRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 2 million by volume (ppmv), other than non-repeatable , momentary readings. (6) COMPONENT means any equipment that is part of t he gas collection system or gas control system and that contains land fill gas including, but not limited to, wells, pipes, flanges, fittings, va lves, flame arresters, knock-out drums, sampling pots, blowers, compressor s, or connectors. (7) CONSTRUCTION AND DEMOLITION WASTE means waste b uilding materials, packing and rubble resulting from constr uction, remodeling, repair and demolition operations on pavements, hous es, commercial building and other structures. (8) CONTINUOUS OPERATION means that the gas collect ion and gas control systems are operated continuously, the exis ting gas collection wells are operating under vacuum while maintaining landfill gas flow, and the collected landfill gas is processed by a gas co ntrol system 24 hours per day. (9) DESTRUCTION EFFICIENCY means a measure of the a bility of a gas control device to combust, transform, or otherwise prevent emissions of methane from entering the atmosphere. (10) ENCLOSED COMBUSTOR means an enclosed flare, st eam generating boiler, internal combustion engine or gas turbine. (11) ENERGY RECOVERY DEVICE means any combustion de vice that uses landfill gas to recover energy in the form of steam or electricity including, but not limited to gas turbines, internal combustio n engines, boilers, and boiler-to-steam turbine systems. (12) EXECUTIVE OFFICER means the Executive Officer or designee of the South Coast Air Quality Management District (13) GAS COLLECTION SYSTEM means any system that em ploys various gas collection wells and connected piping and mecha nical blowers, fans, pumps or compressors to create a pressure gradient and actively extract landfill gases. (14) GAS CONTROL DEVICE means any device used to di spose of or treat collected landfill gas including, but not limited t o, enclosed flares, open flares, internal combustion engines, boilers and bo iler-to-steam systems, process heaters, fuel cells, and gas turbines. (15) GAS CONTROL SYSTEM means any system that dispo ses of or treats collected landfill gas by one or more of the follow ing means: combustion,Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 3 gas treatment for subsequent sale, or sale for proc essing offsite, including for transportation fuel and injection into natural gas pipelines. (16) INACTIVE MSW LANDFILL means an MSWa Municipal Solid Waste
landfill wherethat has not accepted solid waste had been disposed of
beforeafter

November 8, 1987 and no more subsequent ly no further solid waste disposal activity has been conducted within t he disposal facility. (6)(17) LANDFILL GAS means any untreated, raw gas derived t hrough a natural process from the decomposition of organic waste dep osited in a MSW landfill from the evolution of volatile species in the waste, or from
chemical reactions of substances in the waste. (18) LANDFILL SURFACE means the area of the landfil l under which decomposable solid waste has been placed, excluding the working face. (19) MUNICIPAL SOLID WASTE or MSW LANDFILL means an entire disposal facility in a contiguous geographical spac e where solid waste is placed in or on land. An MSW landfill may be either active or , inactive
or closed

. (7(20) NON-DECOMPOSABLE SOLID WASTE means materials that do not degrade biologically to form landfill gases. Examp les include, but are not limited to, earth, rock, concrete, asphalt, paving fragments, clay products, inert slag, asbestos-containing waste, and demoliti on material containing minor amounts (less than 10 percent by volume) of w ood and metals.
Materials that do not meet this definition are cons idered decomposable
solid waste. (21) NON-REPEATABLE MOMENTARY READINGS means indica tions of the presence of methane, total organic compounds, o r toxic air contaminants, which persist for less than five seco nds and do not recur when the sampling probe of a portable gas detector is placed in the same
location. (22 ) OPERATOR means the person: (A) Operating the MSW landfill, or (B) Operating the MSW landfill gas collection or gas control system. ( 823 ) OWNER means the person holding tT itle to the property. (24) PASSIVE COLLECTION SYSTEM means a gas collecti on system that solely uses positive pressure within the landfill t o move the gas rather than using gas mover equipment, or uses the natural pres sure gradientRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 4 established between the encapsulated waste and the atmosphere to move the gas through the collection system. (25) PERIMETER means the outer boundary of the entire wa ste disposal
property. ( 1026 ) PROFESSIONAL ENGINEER means an engineer holding a valid certificate issued by the State of California Board of Registration for Professional Engineers and Land Surveyors or a stat e offering reciprocity
with California. (11(27)SOLID WASTE means all decomposable and non-d ecomposable solid, semisolid and liquid wastes including garbage, tras h, refuse, paper, rubbish, ashes, industrial waste, manure, vegetable or animal solid and semisolid waste. Solid waste also includes any mat erial meeting the definition of solid waste in 40 CFR 60.751 (as last amended by 64 Fed. Reg. 9262, Feb. 24, 1999), as incorporated by refe rence herein. (28) SUBSURFACE GAS MIGRATION means underground lan dfill gases that are detected at any point on the perimeter, pu rsuant to California Code of Regulation Title 27, section 20921. (29 ) TOXIC AIR CONTAMINANT (TAC) means an air contamin ant which has been identified as a hazardous air pollutant pu rsuant to Section 7412 of Title 42 of the United States Code; or has been identified as a TAC by the Air Resources Board pursuant to Health and Safe ty Code Section 39655 through 39662, or which may cause or contribu te to an increase in mortality or an increase in serious illness, or pot ential hazard to human
health. (30) WASTE IN PLACE means the total amount of solid waste placed in an MSW landfill, estimated in tons. The refuse densit y is assumed to be 1,300 pounds per cubic yard and the decomposable fr action is assumed to be 70 percent by weight. (31) WELL RAISING means a MSW landfill activity whe re an existing gas collection well is temporarily disconnected from a vacuum source; and the non-perforated pipe attached to the well is extende d vertically to allow the addition of a new layer of solid waste or the final cover or is extended horizontally to allow extension of an existing laye r of solid waste or cover material. The extended pipe is then reconnected to vacuum source in order to continue collecting gases from that well.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 5 (32) WORKING FACE means that open area where solid waste is deposited daily and compacted with landfill equipment.

(d) Active Landfill Design and Operation Requiremen ts The MSW landfill owner or operator shall comply wit h the provisions of paragraphs (d)(1) through (d)( 1120 ): (1) If a valid Permit to Construct or Permit to Ope rate for the gas collection
and gas control system s that meets the requirements of subparagraphs (d)(1)(A) through (d)(1)(C) has not been issued by the District

, by the adoption date of this rule,owner or operator shall submit a site-specific gas collection and control systemgas collection and gas control systems design plan. The design plan shall be prepared by a Profe ssional Engineer and
sentsubmitted to the Executive Officer with applications for Per mits to Construct or Permits to Operate no later than one year afterfor the adoption of this rule.gas collection and control sy stemgas collection and gas control systems. The Executive Officer shall review the gas collection and control systemgas collection and gas control sy stems design and either approve it, disapprove it, or request that addition al information be
submitted. An approved design plan may be revised and submit ted for review and approval by the Executive Officer. Revi sions shall be prepared by a Professional Engineer. (A) The gas collection and control systemgas collection an d gas control systems shall be designed to handle the maximum expected gas flow rate from the entire area of the MSW landfill that requires control, to minimize migration of subsurface gas to comply with paragraph (d)( 410 ), and to collect gas at an extraction rate to comply with paragraphs (d)( 511 ) and (d)( 612 ). For the purposes of calculating the maximum expected gas generation flow rate from the landfill, the 2006 Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inven tories, Chapter 3 (IPCC Model), using landfill gas capture factor of 75 percent shall be used. one of the equations in 40 CFR, Part 60, Section 60.755(a)(1) shall be used. Another Any ot her method may be used to determine the maximum gas generation flow r ate, if the method has beenmust be submitted in writing and approved by the Executive Officer , prior to use

. 752(b)(2 )(i) 752(b)(2)(i)(D)

752(b)(2)(ii)(A)( 1 ), ( 3 ), ( 4 ) 755(a)(1) 758(b)(1)(i)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 6 (B) If a valid Permit to Construct or Permit to Ope rate has not been issued by the District for the gas collection and gas control
system s , the gas collection and gas control system s design plan shall either conform with specifications for active collection systems in 40 CFR, Part 60, Section 60.759 or inclu de a
demonstration to the Executive Officer’s satisfacti on of the sufficiency of the alternative provisions describin g the design and operation of the gas collection and gas control system s , the operating parameters that would indicate proper per formance, and appropriate monitoring procedures. Alternatives to this rule shall be submitted as specified in subdivision (i). (C) The design plan shall provide for the control o f collected MSW landfill emissions through the use of a gas collection and gas control system s meeting the applicable requirements in clauses (d)(1)(C)(i )), (d)(1)(C)(ii), (d)(1)(C)(iii), and (d)(1)(C)( ii):iv), or provide for the collection and subsequent sale of c ollected MSW landfill emissions as specified in clause (d)(1)(C) (v). (i) Route all the collected landfill gas to a gas control system designed and to be operated to eithercontinuously to reduce methane by at least 99 percent by weight and reduce NMOC by at least 98 percent by weight or reduce the outlet NMOC concentration to less than 20 parts per millio n by volume (ppmv), dry basis as hexane at 3 percent oxy gen. The required reduction efficiency or ppmv shall be established by an initial source test, required und er 40 CFR, Part 60, Section 60.8 and annually thereafter using the test methods specified in paragraph (j)(1). The annual source test shall be conducted no later than 45 days after the anniversary date of the initial source test. (I(ii) If an enclosed flare is used as the gas cont rol device, the following requirements shall be met: (I) The enclosed flare shall achieve a methane destruction efficiency of at least 99 percent by weight. (II) The enclosed flare shall be equipped with an automatic damper, an automatic shutdown device, a 752(b)(2)(i)(C) 756(e)

752(b)(2)(iii)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 7 flame arrestor, and a continuous recording
temperature sensor. (III) During restart or startup, an enclosed flare shall have sufficient flow of propane or commercial natural gas to the burners to prevent unburned collected methane from being emitted to the atmosphere. (IV) The enclosed flare shall be operated within the parameter ranges established during the initial or the most recent source test. The operating parameters to be monitored are specified in paragraph (e)(7). (iii) If an open flare is used as the gas control d evice, the following requirements shall be met: (I) An open flare installed and operated prior to Augus t 1, 2008 may operate until January 1, 2018. (II) Operation of an open flare on or after January 1, 2018 may be allowed if the owner or operator can
demonstrate to the Executive Officer that the landfill gas heat input capacity is less than 3.0 MMBtu/hr and is insufficient to support the continuous operation of an enclosed flare or other gas control device. (III) The owner or operator seeking to temporarily operate an open flare during the maintenance or repair of a gas control system or while waiting for
the installation on an enclosed flare or to offset gas mitigation issues must submit a written request to the Executive Officer and operate an open flare onl y after approval. (iv) If a gas control device is an enclosed combust or other than a flare and is used as a gas control device, the fo llowing requirements shall be met: (I) The gas control device shall achieve a methane destruction efficiency of at least 99 percent by weight. Lean burn combustion engines shall reduceRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 8 the outlet methane concentration to less than 3,000 ppmv, dry basis, corrected to 15 percent oxygen. (III ) If a boiler or process heater is used as the gas control device, the landfill gas stream shall be
introduced into the flame zone. Where the landfill gas is the primary fuel for the boiler or process heater, introduction of the landfill gas stream int o the flame zone is not required. ( IIIII ) The gas control device shall be operated within the operating parameter ranges established during the initial or most recent compliant source test. The operating parameters to be monitored are specified
underin paragraph (e)( 67 ). ( iiv ) Route the collectedcollection gas to a treatment system that processes the collectedcollection gas for subsequent sale or

use. All emissions from any atmospheric vent from the ga s treatment system shall be subject to the requirements of clause (d)(1)(C )(i). (2) InstallNew and Active MSW Landfills shall install and operate the gas collection and gas control system s no later than 18 months after the submittal of the design plan. (3) Any owner or operator of existing gas collectio n and gas control systems who modifies those systems to meet the requirements of this rule shall submit for approval to the Executive Officer an ame ndment of the existing design plan to include any necessary updates or add enda. Design plan amendments shall be prepared by a professional engi neer. (4) The owner or operator of a closed or inactive l andfill shall install and operate the gas collection and gas control systems no later than 30 months after the approval of the design plan. (5) The owner or operator of an active MSW Landfill shall identify in their design plan the areas of the landfill that are clos ed or inactive. (6) Any area of the landfill that contains asbestos -containing waste or nondecomposable solid waste may be excluded from colle ction provided that the owner or operator submits documentation to the Executive Officer regarding the nature of the material, and the date of its deposit in the area. This documentation may be included as part of the d esign plan. 752(b)(2)(ii)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 9 (7) The design plan shall include a description of potential mitigation measures to be used to prevent the release of metha ne or other pollutants into the atmosphere during the installation or prep aration of wells, piping, or other related components during repairs or the t emporary shutdown of the gas collection system components; or to be used when solid waste is
excavated and moved. (8) The gas collection device and gas control syste ms shall be operated, maintained and expanded in accordance with the proc edures and schedules set forth in the approved design plan. ( 39 ) If the District has not issued prior written appr oval for subsurface refuse boundary sampling probes, the owner or operator shall design and install subsurface refuse boundary sampling probes as speci fied in Section 1.1 Attachment A, to determine whether landfill gas mig ration exists. Installation of the refuse boundary probes shall be no later than 18 months
after the submittal of the gas collection and gas control systems design plan as specified in paragraph (d)(1). ( 410 ) Operate the gas collection system to prevent the concentration of T OC measured as methane from exceeding five percent by volume in the subsurface refuse boundary sampling probes construc ted for the purposes of detecting lateral migration of landfill gas away from the waste mass, as determined from collected samples. ( 511 ) Operate the gas collection system to prevent the concentration of T OC measured as methane from exceeding 5025 ppmv as determined by integrated samples taken on numbered 50,000 square foot landfill grids. (6(12 ) Operate the gas collection system to prevent the concentration of T OC measured as methane from exceeding 500 ppmv above b ackground as determined by instantaneous monitoring at any locat ion on the landfill, except at the outlet of any gas control device. (7(13) Operate the gas collection and gas control s ystems so that there are no leaks that exceed 500 ppmv TOC measured as methane at any component under positive pressure. Any component leak exceed ing 500 ppmv must be tagged and repaired within 10 calendar days from the time of the first
exceedance. (14 ) Operate the gas control collection and gas control systems or t reatment system at all times when the collected gas is routed to the system.for landfills with an Active Collection System. In the event the gas collection 753(d)

753(e)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 10 , treatment or gas control system s is are inoperable, the gas conveyingactive collection system s shall be shut down and all valves in
the gas collection , treatment and gas control system s contributing to venting of the gas to the atmosphere shall be close d no later than one hour
after such breakdown or no later than one hour afte r the time the owner or operator knew or reasonably should have known of it s occurrence. (8(15 ) Operate the gas collection

, treatment and gas control system s until all the exemption criteria under subdivision (k) has have been met and the reports specified in subparagraph (f)(2)(D) have been submi tted to the Executive
Officer. (9(16) Operate all Wellheads so the gauge pressure is under a constant vacuum (negative pressure), except under the following con ditions: (A) During wellhead raising: When a new fill is be ing added or compacted in the immediate vicinity around the well and once installed, while a gas collection well extension is sealed or capped
until the raised well is reconnected to vacuum sour ce. (B) During repair and temporary shutdown of the gas collection system due to a catastrophic event, such as an earthquake, or to extinguish landfill fires; and as a result of these events, du ring repair efforts to connect new landfill gas collection system componen ts to the existing gas collection system, and to do required permitted component connection for the gas collection system, and to perform permitted construction activities provided the following requirements are met: (i) Any new gas collection system components requir ed to maintain compliance with this subparagraph must be included in the most recent Design Plan pursuant to paragraph (d)(3). (ii) Methane and other landfill gas emissions are m inimized during shutdown pursuant to subdivision (d). (17 ) Design, install, and operate a wind speed and dir ection monitoring system with a continuous recorder of the requirements in s ubparagraphs (d)( 917 )(A) and (d)( 917 )(B), at a site which is representative of the wind speed and direction in the areas being sampled. Th e wind velocity shall be recorded throughout the sampling period. The wind direction transmitter 752(b)(2)(V)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 11 shall be oriented to true north using a compass. The monitor shall be installed according to the criteria set forth in 40 CFR, Part 50. (A) For wind speed use a 3 cup assembly, with a ran ge of 0 to 50 miles per hour, with a threshold of 0.75 mile per hour or less. (B) For wind direction

, use a vane , with a range of 0 to 540 degrees azimuth, with a threshold of plus-minus 2 degrees. (18) Comply with the requirements of Section 21140 – Fin al Cover, of California Code of Regulations Title 27, Subchapter5 – Closure and PostClosure Maintenance, upon closure of a MSW landfill unit, incorporated
herein as Attachment B. (19) Comply with the requirement of Section 20200 – Stat e Water Resources Conservation Board (SWRCB) Applicability and Classification Criteria of California Code of Regulations Title 27, Article 2 – SWRCB, Waste Classification and Management, with respect to the disposal of liquids and semi-solid waste at Class III landfills, incorporat ed herein as Attachment
C. (20) Comply with the requirements of National Emiss ions Standards for Hazardous Air Pollutants (NESHAP) 40 CFR Part 63 Su bpart AAAA, as applicable.

(e) Active Landfill Sampling and Monitoring Require ments The MSW landfill owner or operator shall comply wit h the provisions of paragraphs (e)(1) through (e)( 67 ), after installation of the landfill gas control
system: (1) Monitor and collect samples for analysis as spe cified in Section 1.0, Attachment A, to determine the concentrations of TO C and TAC each month from the subsurface refuse boundary sampling probes, to assure continued compliance. Any measurement of 5 percent TOC by volume or greater shall be recorded as an exceedance and the actions specified in subparagraphs (e)(1)(A) through (e)(1)(C) shall be taken. (A) The probe shall be identified and the location recorded as specified in Section 1.6, Attachment A. (B) Adjustments to the vacuum of adjacent wells to increase the gas collection in the vicinity of the probe with the ex ceedance

, shall be made and the probe resampled no later than 10 calen dar days after detecting the exceedance.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 12 (C) If the resampling of the probe shows a second e xceedance,
additional corrective action shall be taken and the probe shall be resampled again no later than 10 calendar days afte r the second exceedance. If the resampling shows a third exceed ance, it is a violation unless the owner or operator determines t hat a new or replacement gas collection well is needed. The own er or operator must install and operate the new or replacement wel l no later than 45 days after detecting the third exceedance. (2) Collect monthly integrated samples for analysis as specified in Section 2.0, Attachment A, to determine the concentrations of TOC and TAC from the landfill surface, and to assure continued compliance. Any reading of
5025 ppmv or greater shall be recorded as an exceedance and the actions specified in subparagraphs (e)(2)(A) through (e)(2) (C) shall be taken. (A) The grid shall be identified and the location r ecorded as specified in Section 2.8, Attachment A. (B) Cover maintenance orIf the sample shows an exceedan ce, the gas collection equipment and the landfill cover shall b e serviced to ensure the exceedance is repaired. If adjustments to the vacuum of adjacent wells are made to increase the gas collection in the vicinity of the grid with the exceedance shall be made and resample the grid resampled no later than 10 calendar days after detecting the exceedance. If measurable precipitat ion occurs within the 10 calendar days, all resampling resamples and analysis shall comply with Section 2.2.2, Attachment A. (C) If the resamplingresample of the grid shows a second exceedance,
additional corrective action shall be taken and the grid shall be resampled again no later than 10 calendar days afte r the second
exceedance. If the resamplingresample shows a third exceedance, it is a violation unless the owner or operator dete rmines that a new or replacement gas collection well is needed. The owner or operator must install and operate the new or replac ement well no later than 45 days after detecting the third exceed ance. (3) Monitor instantaneouslyInstantaneous surface monito ring as specified in Section 3.0, Attachment A, shall be conducted to determine the concentration of TOC each calendar quarter, to assu re continued compliance. Any reading of 500 ppmv TOC or greater other than non755(c) 756(f)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 13 repeatable momentary readings, shall be recorded as an exceedance and the actions specified in subparagraphs (e)(3)(A) th rough (e)(3)(C) shall be taken. Any closed or inactive MSW landfill that meets the definitions in (c)(4) or (c)(176) and has no monitored exceedances of the observed monitoring readings that exceed 500 ppmv standard in threefor the last
four consecutive quarterly monitoring periods may , upon approval of the Executive Officer, monitor annually. Any reading of 500 ppmv TOC or

more above background detected during the annual monitoring or an SCAQMD compliance inspectionsinspection that cannot be remediated within 10 days shall result in a return to quarterly monitoring fo r thatthe
landfill. (A) The location of each monitored exceedance shall be clearly marked
and identified on a topographic map of the MSW landfill or identified by using a global positioning system and the location recorded as specified in Section 3.4, Attachment A. (B) CoverCorrective action must be taken by the owner o r the operator, including, but not limited to one or more of the following: cover maintenance or repair, or well vacuum adjustments to the vacuum of adjacent wells to increase the ga s collection in the vicinity of each exceedance shall be made and the.
The location shall be remonitored no later than 10 cal endar days after detecting the exceedance. (C) If the remonitoring of the location shows a sec ond exceedance,
additional corrective action shall be taken and the location shall be remonitored again no later than 10 days after the s econd exceedance. If the remonitoring shows a third exce edance, it is a violation unless the owner or operator determines t hat a new or replacement gas collection well is needed. The own er or operator must install and operate the new or replacement wel l no later than 45 days after detecting the third exceedance. (4) Wellheads shall each be monitored monthly to de termine the gauge pressure. If there is any positive pressure reading , other than as provided in subparagraphs (d)(16)(A) and (d)(16)(B), the own er or operator shall take the following actions: (A) Initiate corrective action within 5 calendar da ys of the positive
pressure measurement.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 14 (B) If the problem cannot be corrected within 15 da ys of the first positive pressure measurement, the owner or operato r must initiate further action, including but not limited to, any n ecessary expansion of the gas collection system to mitigate any positive pressure readings. (C) All corrective actions, including any expansion of the gas collection and gas control systems, must be complet ed and any new wells must be in operation within 120 days of t he date of the first positive pressure measurement. (D) Determination of gauge pressure must be determi ned using a handheld manometer, magnahelic gauge or other pressure measuring device approved by the Executive Officer. The devi ce must be calibrated and operated in accordance with the manu facturer’s specifications. (4)(5) Collect a monthly landfill gas sample for analysis as specified in Section 4.0, Attachment A, to determine the concentrations of TOC and TAC from the main gas collection header line entering the gas treatment and/orany gas control systems. ( 56 ) Collect monthly ambient air samples for analysis as specified in Section 5.0, Attachment A, to determine the concentrations of TOC and TAC from the landfill property boundary. ( 67 ) Monitor the gas collection and gas control system s equipment specified under subparagraphs (e)( 67 )(A ), (e)(7)(B ) and (e)( 6)(B7)(C ) in order to comply with subparagraph (d)(1)(C). (A) For an enclosed combustor install, calibrate, maintain,combustors
and operateenclosed flares, the following equipment mus t be installed, calibrated, maintained, and operated according to the manufacturer's specifications , the following equipment : (i) A temperature monitoring device equipped with a continuous recorder and having an accuracy of plus- minus 1 percent of the temperature being measured express ed in degrees Celsius or Fahrenheit. A temperature monit oring device is not required for boilers or process heate rs with design heat input capacity greater than 44 megawatt s. (ii) At least one gas flow rate measuring device th at shall
record the flow to the gas control device(s) at least every 15 756(b)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 15 minutes. Determination of gauge pressure must be determined using a hand-held manometer, magnahelic gauge or other pressure measuring device approved b y the
Executive Officer. The device must be calibrated a nd operated in accordance with manufacturer’s specific ation. (B) For a device other than an enclosed combustorFor op en flares and other non-combustion systems , demonstrate compliance with subparagraph (d)(1)(C) by providing information sat isfactory to the Executive Officer describing the operation of t he gas control device, the operating parameters that would indicat e proper performance, and appropriate monitoring procedures. Alternatives to this rule shall be submitted as specified in sub division (i). The Executive Officer may specify additional appropriat e monitoring procedures. (C) All components containing landfill gas that are under positive pressure shall be monitored for leaks on a quarterl y basis. Any component leak must first be tagged and then repair ed within 10 calendar days. Component leak testing at MSW landf ills having landfill gas-to-energy facilities may conduct testi ng for leaks prior to scheduled maintenance or during planned outage p eriods.

(f) Active Landfill Recordkeeping and Reporting Req uirements The MSW landfill owner or operator shall keep all r ecords on paper, electronic or in other suitable data formats approved by the Exec utive Officer, kept up-to-date, readily accessible and maintained for at least a pe riod of 5 years and. Such
records shall be made available to District staffthe Executive Officer upon request. Records older than 2 years may be maintai ned off-site, if they are retrievable no later than 4 hours after request

. (1) The records required in subparagraphs (f)(1)(A) through (f)(1)( HL ) shall
be maintained atand be accessible by the facility. (A) For the life of the gas control equipmentsystem, as measured during the initial source test or compliance determ ination: (i) The gas control device vendor specifications. (ii) The maximum expected gas generation flow rate as calculated inpursuant to subparagraph (d)(1)(A). 758(a)

758(b)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 16 (iii) When seeking to demonstratedemonstrating compliance with subparagraph (d)(1)(C) through the use of an e nclosed combustion device other than a boiler or process he ater with a design heat input capacity greater than 44
megawatts: (I) The average combustion temperature measured at least every 15 minutes and averaged over the same time period of the source test. (II) The reduction of NMOC and the reduction of
methane determined as specified in clause (d)(1)(C)(i) achieved by the gas control device. (iv) When seeking to demonstratedemonstrating compliance with subclause (d)(1)(C)(i )(I ) through the use of a boiler or process heater of any size: a description of the l ocation at which the collected gas vent stream is introduced i nto the boiler or process heater overand is established during the same time period of theinitial or most recent source testingtest

. (v) When demonstrating compliance with subparagraph (d)(1)(A) though the use of a non-enclosed combusti on device, the owner or operator shall maintain record s of
measurement from the initial source test and from e ach annual performance test as specified in 40 CFR 60.1 8. If the combustion device is an open flare, the owner o r operator shall maintain records of the flare flame monitoring and records of all periods of operation during which the pilot flame of the flare is absent. (B) The data required to be recorded under Section 1.6, Attachment A, for subsurface refuse boundary sampling probes and all remedial actions taken for exceedances of the 5 percent TOC standard required in paragraph (d)( 410) and all actions taken and recorded to comply with Title 27 sec. 20937 (a)(2)(B)(i) thr ough (a)(2)(B)(iv ). (C) The data required to be recorded under Section 2.8, Attachment A, for integrated samples and all remedial actions tak en forRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 17 exceedances of the 5025 ppmv TOC standard required in paragraph (d)( 511 ). (D) The data required to be recorded under Section 3.4, Attachment A, for instantaneous monitoring and all remedial actio ns taken for exceedances of the 500 ppmv TOC standard required i n paragraph (d)( 6).12). Instantaneous monitoring exceedances from 200 to 499 ppmv shall also be recorded but remedial action is not required. (E) The data required to be recorded under Section 4.5, Attachment A, for landfill gas samples collected from the main ga s collection header line entering the gas treatment and/or gas c ontrol systems. (F) The data required to be recorded under Section 5.7, Attachment A, from ambient air collected at the landfill property boundary. (G) A description and the duration of all periods w hen the gas collection , treatment

or gas control device system was not operating for a period exceeding one hour and the l ength of time the system was not operating. (H ) During construction that requires exposing solid waste material to the atmosphere, the following records are required: (i) A description of actions taken, the affected ar ea of the MSW Landfill, the reason the actions are required a nd a list of the landfill gas collection system components af fected by actions; (ii) Construction start and finish dates, projected equipment installation dates, and projected shut down times f or individual gas collection system components; and (iii) A description of the mitigation measures take n to minimize methane emissions and other potential air quality i mpacts during the construction period. (I) All records pertaining to solid waste acceptanc e, solid waste acceptance rate, and the current amount of waste in place. (J) All records pertaining to non-degradable waste acceptance, including the nature, location, amount, and the dep osition for any landfill area excluded from the gas collection syst em. (K) All records of positive wellhead gauge pressure measurements, the date of the measurements, the well identification n umber, and the
corrective action taken. 758(e)

757(f)(3)

758(c)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 18 (L ) Continuous records of the equipment operating par ameters specified to be monitored under paragraph (e)( 67 ) as well as records for periods of operation during which the p arameter boundaries established during the most recent sourc e test are
exceeded. (i) The following constitute exceedances that shall be
recorded: (I) For enclosed combustors except for boilers and process heaters with design heat input capacity of 44 megawatts (150 million British thermal unit per hour) or greater, all 3-hour periods of operation during which the average combustion temperature
was more than 28 o C (82 o F) below the average combustion temperature during the most recent source test at which compliance with subparagraph (d)(1)(C) was determined. (II) For boilers or process heaters, whenever there is a change in the location at which the vent stream is introduced into the flame zone as required under clause (f)(1)(A)(iv). (ii) Records of the indication of flow to the gas control device specified under paragraph in clause (e)( 67 )(A)(ii). (iii) Each owner or operator who uses a boiler or p rocess heater with a design heat input capacity of 44 megawatts o r greater to comply with subparagraph (d)(1)(C) shall keep records of all periods of operation of the boiler o r process heater. (Examples of such records could include re cords of steam use, fuel use, or monitoring data collected p ursuant to other State, local, Tribal, or Federal regulator y requirements.) (2) The reports required in subparagraphs (f)(2)(A) through (f)(2)(D) shall be
submitted to the Executive Officer (Either paper copy or electronic formats are acceptable).. (A) The initial source test report no later than 18 0 days after start-up and each succeeding complete annual source test rep ort no laterRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 19 than 45 days after the anniversary date of the init ial source test, for
all gas control systems required in subparagraph (d)(1)(C). (B) A report no later than 45 days after the last d ay of each calendar quarter with the information required in clauses (f )(2)(B)(i) and (f)(2)(B)(ii). (i) All exceedances of the emission standards requi red in paragraphs (d)( 410 ), (d)( 511 ) and (d)( 612 ) in the format required under Sections 1.6, 2.8 and 3.4, Attachmen t A.
All exceedance s resampl eding /remonitor eding and each corrective action required under paragraphs (e)(1), (e)(2) and (e)(3). If there are no exceedances, submit a letter stating there were no exceedances for that quarter. (ii) All TAC analyses required in paragraphs (e)(1) through (e)( 56 ). (C) AAny owner or operator of a MSW landfill which has ceased accepting waste shall submit a closure report to the Executive Officer no later than 30 days after waste acceptanc e cessation. The report should include the last day solid waste was accepted, the projected date of closure for the MSW Landfill, and the estimated amount of waste-in-place. The Executive Officer may request additional information as may be necessary to verif y that permanent closure has taken place in accordance wit h the requirements of 40 CFR, Part 258, Section 258.60 or the applicable federal, state and local statutes, regulations, and ordinances in effect at the time of closure. If a closure report has been submitted to the Executive Officer, no additional wastes shal l be placed into the landfill without filing a notification of modif ication as described under 40 CFR, Part 60, Section 60.7(a)(4)

. (D) AAny owner or operator of a MSW landfill which has ceased operation of a gas collection or gas control system shall submit a decommissioning report to the Executive Officer 30 days prior to well capping, removal or cessation of operation of the collection, treatment or control equipment. The decommissionin g report shall contain all of the items as specified in clauses (f )(2)(D)(i) through (f)(2)(D)(iii): 757(d)

757(e)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 20 (i) A copy of the closure report submitted in accor dance with subparagraph (f)(2)(C). (ii) A copy of the initial source test report demon strating that
the gas collection and gas control system s has have been
installed for a minimum of 15 years. (iii) All records needed to verify that the landfill meets the exemption criteria under subdivision (k). (3) An Annual Report shall be submitted by any owne r or operator subject to the requirements of this rule. The Annual Report s hall cover the period of January 1 through December 31 of each year. Each A nnual Report shall be submitted by March 15 of the following year to t he District. The Annual Report shall contain the following: (A) MSW Landfill name, owner and operator, address, solid waste information system (SWIS) identification number, la ndfill status (active, closed, inactive) and estimated waste-in–p lace in tons; (B) Total volume of landfill gas collected (reporte d in standard cubic feet); (C) Average composition of the landfill gas collect ed over the reporting period (reported in percent methane and p ercent carbon dioxide by volume); (D) Gas control device type, year of installation, rating, fuel type, and total amount of landfill gas combusted in each gas control device; (E) The date that the gas collection and gas contro l systems were installed and in full operation; (F) The percent methane destruction efficiency of e ach gas control device; (G) Type and amount of supplemental fuels burned wi th the landfill gas in each device; (H) Total volume of landfill gas shipped off-site, the composition of the landfill gas collected (reported in percent met hane 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 areas with final cover without a geomembrane, with corresponding percentages over the landfill surface; andRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 21 (J) The records required by paragraph (f)(1) except for records required by subparagraphs (f)(1)(B), (f)(1)(E) and (f)(1)(F). (4) Any report or information required in paragraph (f)(2) or (f)(3) must be certified by a responsible official that the statem ents and information in the report are true, accurate, and complete.

(g) Active Landfill Compliance Schedule The MSW landfill owner or operator shall comply wit h the active landfill requirements of this rule or submit alternatives to this rule as specified in subdivision (i) no later than 90 days after April 1 0, 1998. Rule 1150.1 Compliance Plans previously submitted to the Distri ct shall remain in effect during the 90 days after April 10, 1998, or until t he owner or operator has
received an approved alternative Rule 1150.1 Compliance Plan submitted as specified in subdivision (i). An MSW landfill owner or operator that requires o ne or more alternatives to comply with this rule due t o the April 1, 2011 rule amendment, shall submit a request for such alternat ives as specified in subdivision (i) by May 6, 2011 that demonstrates co mpliance no later than July 1, 2011, and shall comply with any previously approved Rule 1150.1 Compliance Plan until July 1, 2011 or until the owner or opera tor has received an approved revised Rule 1150.1 Compliance Plan. On and after July 1, 2011, the MSW landfill owner or operator shall operate pursuant t o an approved Rule 1150.1 Compliance Plan or, if plan approval is pending, th e revised Rule 1150.1 Compliance Plan submitted on or before May 6, 2011.

(h) Inactive Landfill Requirements The MSW landfill owner or operator shall comply wit h either the applicable requirements in paragraphs (h)(1) and (h)(2) or sub mit alternatives to this rule as specified in subdivision (i). (1) Inactive landfills that have a landfill gas col lection system shall meet all of the active landfill requirements. For those inacti ve landfills without a gas collection system and determined to need one, meet all of the active landfill requirements, except the gas collection and gas control system s design plan and applications. Applications for permits shall be submitted no later than one year after notification by the Ex ecutive Officer.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 22 (2) Inactive landfills without a gas collection sys tem: (A) Upon discovery of TOC measured as methane excee ding 500 200 ppmv at any location on the landfill surface, apply mitigation measures such as compaction, additional cover, and/ or watering to
reduce the emissions to less than 500 200 ppmv. The procedure used for measurement of TOC shall meet the requirem ents of Section 3.0, Attachment A. (B) Submit the following Datadata and/or meet the required action in paragraph (h)(1): (i) At any time after the adoption of this rule, but no t No later than 30 days after the receipt of a request, submit to the Executive Officer a screening questionnaire pursuan t to California Air Resources Board Health and Safety Co de (H & S) 41805.5. (ii) No later than 90 days after the date of a seco nd request, submit to the Executive Officer a solid waste air q uality assessment test (SWAT) report pursuant to H & S 418 05.5,
to determine whether or not a landfill gas collection and control systemgas collection and gas control system s and/or a subsurface refuse boundary probe sampling system shall be required to be installed. (iii) If additional time is needed to provide the i nformation required in clauses (h)(2)(B)(i) and (h)(2)(B)(ii), a written request for an extension may be submitted in writin g to the Executive Officer, indicating the amount of time th at is needed to obtain such information. Such a request for an extension may be submitted to the Executive Officer no later than 30 days after the receipt of the Executi ve Officer's requests as specified in clauses (h)(2)(B )(i) and (h)(2)(B)(ii). (iv) Upon notification by the Executive Officer that a l andfill gas collection and control systemgas collection and gas control systems and/or a subsurface refuse boundary probe sampling system shall be required, comply with para graph (h)(1).Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 23 (i) Alternatives : BecauseThe owner or operator of the many site-specific factors involved in the design and operation ofa MSW landfill gas systems,may request alternatives to
the compliance requirements, monitoring requirements, test methods, and test procedures , compliance measures, monitoring, recordkeeping or reporting provisions of this rule may be necessary.. All requests for alternatives to the requirements of this rule shall be submitted to the Executive Officer in a Rule 1150.1 Compliance Plan. The Executive Officer shal l review the Rule 1150.1 Compliance Plan and either approve it, disapprove i t, or request that additional
information be submitted. The Unless a determination is made by the Executive
Officer shall deny the plan unless he determines that itthe Rule 1150.1 Compliance Plan will provide equivalent levels of emission control and enforceability, as would compliance with the requir ements of this rule ., the Executive Officer will deny the plan. Criteria tha t the Executive Officer may use to evaluate requests for alternatives include, but are not limited to: compliance history, documentation, containment of the landfill gas flow rate measured methane concentrations for individual gas collectio n wells or components, permits, component testing and surface monitoring r esults, gas collection and control systemgas collection and gas control system s operations, maintenance and inspection records, and historical meteorological d ata. Requests for alternatives may include, but are not limited to, the following: (1) Semi-continuous operation of the gas collection and control systemgas collection and gas control systems due to insuffici ent landfill gas flow

rates. (2) Additional time for leak repairs for landfills having consistent issues related to the procurement and delivery of necessar y parts to complete the repairs. (3) Alternative wind speed requirements for landfil ls consistently having wind speed in excess of the limit specified in Sec.2.2.1 of Attachment A.

(j) Test Methods (1) Methods of Analysis (A) Either U.S. EPA Reference Method 25 or U.S. EPA Reference
Method 18 , (inlet only), 40 CFR, Part 60, Appendix A , SCAQMD Method 25.1 or SCAQMD Method 25.3 shall be used to determine the efficiency of the gas control system in reducing NMOC by at 752(b)(2)(i)(B)

754(d)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 24 least 98 percent by weight.. If using Method 18, the minimum list of compounds to be tested shall be those published in the most recent Compilation of Air Pollutant Emission Factor s (AP-42). The equation in subparagraph (j)(1)(B) shall be use d to calculate efficiency.
(B) U.S. EPA Reference Method 25, 40 CFR, Part 60, Appendix A

, SCAQMD Method 25.1, or SCAQMD Method 25.3 shall be used to determine the efficiency of the gas control system in reducing the outlet NMOC concentration to less than 20 ppmv, dry basis as hexane at 3 percent oxygen. Until, but not after District Method 25.3 has met equivalency as specified in paragraph (j)(2), U.S. EPA Reference Method 18, 40 CFR, Part 60, Appendix A may be used for this source test. If using Method 18, the minimum list of compounds to be tested shall be those published in the most recent Compilation of Air Pollutant Emission Factors (AP-4 2). The following equation shall be used to calculate effic iency:
Control Efficiency = (NMOC in - NMOC out )/(NMOC in )



### ( ) ( ) 100% NMOC NMOC NMOC (%) y Efficienc Control

in out in × −
=

where,
NMOC in = mass of NMOC entering control device
NMOC out = mass of NMOC exiting control device (C) Either U.S. EPA Reference Method 25, U.S. EPA R eference Method 18, 40 CFR, Part 60, Appendix A, SCAQMD Meth od 25.1, SCAQMD Method 25.3, ASTM Method D1945, or AST M
Method D1946 shall be used to determine the efficie ncy of the gas control system in reducing methane. The equation i n subparagraph (j)(1)(D) shall be used to calculate efficiency.
(D) U.S. EPA Reference Method 25, U.S. EPA Referenc e Method 18, 40 CFR, Part 60, Appendix A, SCAQMD Method 25.1, SC AQMD Method 25.3, ASTM Method D1945, or ASTM Method D194 6 shall be used to determine the efficiency of the ga s control system in reducing the outlet methane concentration to les s than 20 ppmv,Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 25 dry basis as hexane at 3 percent oxygen. The follo wing equation shall be used to calculate efficiency:



### ( ) ( ) 100% Methane Methane Methane (%) y Efficienc Control

in out in × −
=

where,
Methane in = mass of Methane entering control device
Methane out

= mass of Methane exiting control device (2) Equivalent Test Methods Any other method demonstrated to be equivalent and approved in writing by the Executive Officers of the District, the Cali fornia Air Resources Board (CARB), and the Regional Administrator of the United States Environmental Protection Agency (U.S. EPA), Region IX, or their designees, may be used to determine compliance with this rule. (3) Approval for Conducting Test and Analysis The owner or operator shall use a test laboratory a pproved under the SCAQMD Laboratory Approval Program for source test methods cited in subdivision (fj). If there is no approved laborator y, then approval of the testing procedures used by the laboratory shall be granted by the Executive Officer on a case-by-case basis based on SCAQMD protocols and procedures. In addition, when more than one so urce test method or set of source test methods are specified for any te sting, the application of these source test methods to a specific set of test conditions is subject to approval by the Executive Officer. (4) Violation of Test Methods A violation established by any one of the specific source test methods or
set of source test methods shall constitute a viola tion of this rule.

(k) Exemptions An MSW landfill may be temporarily exempt from all or any portion of the requirements of this rule if the owner or operator can demonstrate to the Executive
Officer that the MSW landfill emissions meet the re quirements of paragraphs (k)(1) through (k)( 45 ) , t emporary exemption s may be independently determined by the Executive Officer, if the MSW landfill emission s meet the requirements of paragraphs (k)(1) through (k)( 45 ). MSW landfills issued temporary exemptionRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 26 letters by the Executive Officer shall remain exemp t, subject to periodic review, provided: (1) The MSW landfill complies with the requirements of paragraphs (d)( 410 ), (d)( 511 ) and (d)( 612 ). (2) The MSW landfill emits less than 55 tons per ye ar of NMOC as specified in 40 CFR, Part 60, Section 60.752(b) or, for a clo sed landfill, as specified in 40 CFR, Part 60, Section 60.752(b)(2)(v)(C). (3) The MSW landfill constitutes an insignificanta less than significant health risk. In making this determination the Executive O fficer shall consider the listed factors in subparagraphs (k)(3)(A) through ( k)(3)(G). Where not specified, in evaluating the cancer risks and hazar d indexesindices , the Executive Officer shall be guided by the definition s in District Rule 1401 - New Source Review of Carcinogenic Air Contaminants, and Rule 1402 -
Control of Toxic Air Contaminants Fromfrom Existing Sources. (A) The proximity to, and any adverse impacts on, r esidences, schools, hospitals or other locations or structures which ha ve children, or elderly or sick persons. (B) The emission migration beyond the landfill prop erty boundary. (C) The complaint history. (D) The age and closure date. (E) The amount and type of waste deposited. (F) That the emissions of carcinogenic air contamin ants, specified in
Table s 1 & 2, Attachment A, from the landfill will not result in a maximum individual cancer risk greater than one in one million (1 x 10 -6 ) at any receptor location. (G) That the emissions of TAC, specified in Table s 1 & 2 , Attachment A, from the landfill will not result in a total acu te or chronic Hazard Index of greater than 1. (4) The MSW landfill is in compliance with District Nuisance Rule 402.
(5) The MSW landfill does not generate sufficient g as to support a gas control system. In making this determination, the Executiv e Officer shall apply the requirements of subparagraphs (k)(5)(A) and (k) (5)(B), and shall only consider temporary exemptions from the requirements of subdivision (d).
(A) If the MSW landfill is closed or inactive and h as a landfill gas heat input capacity equal to or greater than 3.0 MMBtu/h r, the owner or 752(b)Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

1150.1 - 27 operator must demonstrate to the satisfaction of th e Executive Officer that after four consecutive quarterly insta ntaneous monitoring periods there are no surface methane lea ks exceeding 200 ppmv, and submit a waste-in-place report and al l instantaneous surface monitoring records from the previous year t o the Executive
Officer.
(B) If the MSW landfill is active and has 450,000 t ons of waste-inplace or greater and a landfill gas heat input capa city greater than or equal to 3.0 MMBTU/hr, the owner or the operator must
demonstrate to the satisfaction of the Executive Of ficer that after four consecutive quarterly instantaneous monitoring periods there are no surface methane leaks exceeding 200 ppmv and re-calculate the heat capacity annually.

Such a temporary exemption shall be reviewed periodically by the Executive Officer, to consider the land use surrounding the l andfill and gaseous emissions, and the impact on the public. Depending upon the r esults of the review, the Executive Officer may extend or terminate the exemp tion.

(l) Loss of Exemption If an MSW landfill should have its temporary exempt ion terminated, the owner or operator shall comply with the active landfill requ irements of this rule.

(m) The amendments to this rule adopted April 1, 2011 i mplementing the State Air Resources Board Landfill Rule Cal. Code Regs. Tit. 17 §95460 et seq. shall not
become effective until the State Air Resources Boar d Executive Officer or designee provides a letter to the District stating that the enforcement of these requirements shall be in lieu of the State Air Reso urces Board rule, which shall
not be enforced within the District.Rule 1150.1 (Cont.) (Amended March 17, 2000)April 1, 2011)

1150.1 - 28 ATTACHMENT A

1.0 SUBSURFACE REFUSE BOUNDARY SAMPLING PROBES ParagraphParagraphs (d)( 49 ) and (e)(1) Requirements of Rule 1150.1

1.1 Subsurface Probe Design and Installation Landfills which are subject to Rule 1150.1 must ins tall and maintain a subsurface refuse boundary probe sampling system of adequate d esign to determine if gas migration exists for the ultimate purpose of preven ting surface emissions. The California Integrated Waste Management BoardCalRecy cle also requires the installation of refuse boundary probes for purposes of detecting and ultimately preventing subsurface migration of landfill gas pas t the permitted property boundary of the landfill/disposal site as well as t he prevention of the accumulation of landfill gas in on-site structures. It is the D istrict’s intent that the subsurface refuse boundary probes required by paragraph (d)( 39 ) of Rule 1150.1 be designed and installed in such a manner as to comply with th e requirements of the California Integrated Waste Management BoardCalRecy cle (whenever possible) and Sections 1.1.1 through 1.1.4. 1.1.1 The probes shall be installed within the land fill property line and outside the refuse disposal area. 1.1.2 Wherever accessible, the probes shall be loca ted no further than 100 feet from the refuse boundary. 1.1.3 The spacing between probes shall be based on the adjacent land use no further than 1320 feet (1/4 mile) from the refuse b oundary and shall be
determined as follows:

LAND USE SPACING
Residential/Commercial 100 feet
Public Access 500 feet Undeveloped Open Space, (No Public Access) 650 feet
Landfill with Liners 1000 feet
1.1.4 Each probe shall be capped, sealed, have a sa mpling valve and be of multiple-depth design for which the depth shall be determined based on the depth of refuse no further than 500 feet from t he probe as follows:
First Depth 10 feet below surface. Second Depth 25% of refuse depth or 25 feet below s urface,Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 29 whichever is deeper. Third Depth 50% of refuse depth or 50 feet below su rface,

whichever is deeper. Fourth Depth 75% of refuse depth or 75 feet below s urface,

whichever is deeper.
Second, third, or fourth depth probes may be delete d if the required depth of such probe is deeper than the depth of the refuse.
1.2 Number of Samples All refuse boundary gas probes at each depth shall be monitored monthly for TOC measured as methane using a portable flame ionizati on detector (FID) meeting the requirements of Section 3.2 and with a tube connect ed to the probe sampling valve. In addition, samples shall be taken as spec ified in Section 1.2.1 or 1.2.2 to
determine the concentration of both TOC and TAC. T he Executive Officer may require additional probes to be sampled upon writte n request.
1.2.1 If the TOC concentration measured with the FI D does not exceed 5% by volume in any of the probes, collect one bag sample from one probe with the highest concentration, or
1.2.2 If the TOC concentration measured with the FI D for any of the probes exceeds 5% by volume, collect one bag sample per pr obe from the probes with the highest concentrations above 5% by volume, from at least five probes.
1.3 Subsurface Refuse Boundary Probe Sampling Proce dure 1.3.1 Prior to collecting gas samples, evacuate the probe (the probes must be sealed during evacuation) until the TOC concentrati on remains constant
for at least 30 seconds.
1.3.2 The constant TOC concentration shall be measu red using an FID that meets the requirements in Section 3.2. 1.3.3 Collect approximately a 10-liter gas sample i n a Tedlar ( DupontDuPont trade name for polyvinyl) bag or equivalent contain er over a continuous ten-minute period using the evacuated container sam pling procedure
described in Section 7.1.1 of EPA Method 18 or dire ct pump sampling procedure described in Section 7.1.2 of EPA Method 18. The container
shall be LIGHT-SEALED.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 30 1.4 Subsurface Refuse Boundary Probe Analytical Pro cedures All samples collected shall be analyzed no later th an 72 hours after collection for TOC using U.S. EPA Method 25, 40 CFR, Part 60, Appe ndix A analysis or a portable FID that meets the requirements in Section 3.2 and for the TAC specified in Table 1 and upon written request, Table II, usin g U.S. EPA Compendium
Method TO-14.
1.5 Chain of Custody (Required for samples sent to the lab) A custody sheet shall accompany the bag samples. E ach time a bag changes hands, it shall be logged on the custody sheet with the time of custody transfer recorded. Laboratory personnel shall record the co ndition of the sample (full, three-fourths full, one-half full, one-fourth full, or empty). An example of a custody sheet is shown in Figure 4.
1.6 Recording the Results
1.6.1 Record the volume concentration of TOC measur ed as methane for each individually identified refuse boundary probe (at e ach depth) and the volume concentration of TAC for selected probes on a quality control sheet as shown in Figure 3. Include a topographic map drawn to scale with the location of both the refuse boundary probe s and the gas collection system clearly marked and identified. 1.6.2 Maintain and submit the results as specified in subdivision (f) of
Rule 1150.1.

2.0 INTEGRATED LANDFILL SURFACE SAMPLING Paragraph (d)( 511 ) and (e)(2) Requirements of Rule 1150.1

2.1 Number of Samples The number of samples collected will depend on the area of the landfill surface. The entire landfill disposal area shall be divided into individually identified 50,000 square foot grids. One monthly sample shall be collected from each grid for analysis. Any area that the Executive Officer deems inaccessible or dangerous for a technician to enter may be excluded from the sampling grids monitored by the landfill owner or operator. To exclude an area from monitoring, the landfill owner or operator shall file a written request with the Executive Officer. Such a request shall include an explanation of the request ed exclusion and photographs of the area. The Executive Officer shall notify th e landfill owner or operator inRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 31 writing of the decision. Any exclusion granted sha ll apply only to the monitoring requirement. The 5025 ppmv limit specified in paragraph (d)( 511 ) of Rule 1150.1 applies to all areas.
2.2 Integrated Surface Sampling Conditions 2.2.1. The average wind speed during this sampling procedure shall be five miles per hour or less. Surface sampling shall be terminated when the average wind speed exceeds five miles per hour or t he instantaneous wind speed exceeds ten miles per hour. Average win d speed is determined on a 15-minute average. 2.2.2. Surface sampling shall be conducted when the landfill is dry. The landfill is considered dry when there has been no m easurable precipitation for the preceding 72 hours prior to s ampling. Most major newspapers report the amount of precipitation that has fallen in a 24- hour period throughout the Southern California area . Select the nearest reporting station that represents the landfill loca tion or provide for measurable precipitation collection at the MSW land fill wind monitoring
station.
2.3 Integrated Surface Sampler Equipment Descriptio n An integrated surface sampler is a portable self-co ntained unit with its own internal power source. The integrated sampler cons ists of a stainless steel collection probe, a rotameter, a pump, and a 10-lit er Tedlar bag enclosed in a LIGHT-SEALED CONTAINER to prevent photochemical rea ctions from occurring during sampling and transportation. The physical layout of the sampler is shown in Figure 1.
An alternate integrated surface sampler may be used , provided that the landfill owner or operator can show an equivalency with the sampler specifications in Section 2.4 and shown in Figure 1. All alternative s shall be submitted as specified in subdivision (i) of Rule 1150.1.
2.4 Integrated Surface Sampler Equipment Specificat ions 2.4.1 Power: Batteries or any other power source. 2.4.2 Pump: The diaphragm shall be made of non-lub ricated Viton (Dupont trade name for co-polymer of hexafluoropropylene an d vinylidene fluoride) rubber.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 32 2.4.3 Bag: One 10-liter Tedlar bag with a valve. The Tedlar bag shall be
contained in a LIGHT-SEALED CONTAINER. The valve s hall be leak free and constructed of aluminum, stainless steel, or non-reactive plastic with a Viton or Buna-N (butadiene acrylonitrile co- polymer) o-ring seal.
2.4.4 Rotameter: The rotameter shall be made of bo rosilicate glass or other non-reactive material and have a flow range of appr oximately 0-to-1 liter per minute. The scale shall be in milliliters or a n equivalent unit. The graduations shall be spaced to facilitate accurate flow readings.
2.4.5 Air Flow Control Orifice: Needle valve in th e rotameter.
2.4.6 Funnel: 316 stainless steel. 2.4.7 Fittings, Tubing and Connectors: 316 stainle ss steel or Teflon.
2.5 Integrated Surface Sampling Procedure 2.5.1 An integrated surface sampler as described in Section 2.4 shall be used to collect a surface sample approximately 8-to-10 l iters from each grid. 2.5.2 During sampling, the probe shall be placed 0- to-3 inches above the
landfill surface. 2.5.3 The sampler shall be set at a flow rate of ap proximately 333 cubic centimeters per minute 2.5.4 Walk through a course of approximately 2,600 linear feet over a continuous 25-minute period. Figure 2 shows a walk pattern for the 50,000 square foot grid.
2.6 Integrated Surface Sample Analytical Procedures All samples collected shall be analyzed no later th an 72 hours after collection for TOC using U.S. EPA Method 25, 40 CFR, Part 60, Appe ndix A analysis or a portable FID that meets the requirements in Section 3.2. In addition, the samples specified in Section 2.6.1 or 2.6.2 must be analyze d no later than 72 hours after collection for the TAC specified in Table 1 and upo n written request, Table II, using U.S. EPA Compendium Method TO-14. 2.6.1 Ten percent of all samples which have a conce ntration of TOC greater
than 5025 ppmv as methane, or 2.6.2 Two samples if all samples are 5025 ppmv or less of TOC or two samples if there are less than 20 samples above 5025 ppmv. The Executive Officer may require more samples to b e tested for TAC if he determines there is a potential nuisance or public health problem.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 33 2.7 Chain of Custody (Required for samples sent to the lab) A custody sheet shall accompany the bag samples. E ach time a bag changes hands, it shall be logged on the custody sheet with the time of custody transfer recorded. Laboratory personnel shall record the co ndition of the sample (full, three-fourths full, one-half full, one-fourth full, or empty). An example of a custody sheet is shown in Figure 4.
2.8 Recording the Results
2.8.1 Record the volume concentration of both TOC m easured as methane for each grid and the volume concentration for the requ ired TAC on a quality control sheet as shown in Figure 3. Includ e a topographic map drawn to scale with the location of the grids and t he gas collection system clearly marked and identified. 2.8.2 Record the wind speed during the sampling per iod using the wind speed and direction monitoring system required in paragra ph (d)( 917 ) of
Rule 1150.1. 2.8.3 Maintain and submit the results as specified in subdivision (f) of
Rule 1150.1.

3.0 INSTANTANEOUS LANDFILL SURFACE MONITORING SubparagraphParagraphs (d)( 612 ) and (e)(3) Requirements of Rule 1150.1

3.1 Monitoring Area The entire landfill disposal area shall be monitore d once each calendar quarter. Any area of the landfill that the Executive Officer deems as inaccessible or dangerous for a technician to enter may be excluded from the area to be monitored by the landfill owner or operator. To ex clude an area from monitoring, the landfill owner or operator shall file a petitio n with the Executive Officer. Such a request shall include an explanation of why the area should be excluded and photographs of the area. Any excluded area gra nted shall only apply to the monitoring requirement. The 500 ppmv limit specifi ed in paragraph (d)( 612 ) of Rule 1150.1 applies to all areas.
3.2 Equipment Description and Specifications A portable FID shall be used to instantaneously mea sure the concentration of TOC measured as methane at any location on the land fill. The FID shall meet theRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 34 specifications listed in Sections 3.2.1 through 3.2 .4 and shall be kept in good operating condition. 3.2.1 The portable analyzer shall meet the instrume nt specifications provided in Section 3 of U.S. EPA Method 21, except that: 3.2.1.1 “Methane” shall replace all references to V OC. 3.2.1.2 A response time of 15 seconds or shorter sh all be used instead

of 30 seconds. 3.2.1.3 A precision of 3% or better shall be used i nstead of 10%.

In addition the instrument shall meet the specifica tions in Sections 3.2.1.4 through 3.2.1.6. 3.2.1.4 A minimum detectable limit of 5 ppmv (or lo wer). 3.2.1.5 A flame-out indicator, audible and visual. 3.2.1.6 Operate at an ambient temperature of 0 - 50 o C. 3.2.2 The calibration gas shall be methane, diluted to a nominal

concentration of 10,000 ppmv in air for subsurface refuse boundary probe monitoring and sample analysis to comply with paragraph (e)(1) of Rule 1150.1, 5025 ppmv in air for integrated sample analyses to comply with paragraph (e)(2) of Rule 1150.1 and 500 ppmv in air for instantaneous monitoring to comply with paragraph ( e)(3) of Rule
1150.1. 3.2.3 To meet the performance evaluation requiremen ts in Section 3.1.3 of

U.S. EPA Method 21, the instrument evaluation proce dures of Section
4.4 of U.S. EPA Method 21 shall be used. 3.2.4 The calibration procedures provided in Sectio n 4.2 of U.S. EPA

Method 21 shall be followed at the beginning of eac h day before commencing a surface monitoring survey.
3.3 Monitoring Procedures 3.3.1 The owner or operator shall monitor the landf ill disposal area for TOC measured as methane using the described portable eq uipment. 3.3.2 The sampling probe shall be placed at a dista nce of 0-3 inches above any location of the landfill to take the readings. 3.3.3 At a minimum, an individually identified 50,0 00 square foot grid shall be used and a walk pattern as similar to that illustrated in Figure 2 shall be implemented including areas where visual observatio ns indicate elevatedRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 35

concentrations of landfill gas, such as distressed vegetation and cracks or seeps in the cover.
3.4 Recording the Results
3.4.1 Record the location and concentration of TOC measured as methane for any instantaneous reading of 500200 ppmv or greater on a topographic map of the landfill, drawn to scale with the locati on of both the grids and the gas collection system clearly marked and identi fied. 3.4.2 Maintain and submit the results as specified in subdivision (f) of
Rule 1150.1.

4.0 LANDFILL GAS SAMPLE FROM GAS COLLECTION SYSTEM SubparagraphParagraph (e)( 45 ) Requirement of Rule 1150.1

4.1 Number of Samples Collect one monthly sample of landfill gas for anal ysis from the main gas collection header line entering the gas treatment a nd/or gas control system(s). 4.2 Sampling Procedure Collect approximately a 10-liter sample in a Tedlar bag or equivalent container over a continuous ten-minute period. 4.3 Analytical Procedures Samples collected shall be analyzed no later than 7 2 hours after collection for TOC using U.S. EPA Method 25, 40 CFR, Part 60, Appe ndix A analysis and for the TAC specified in Table 1 and upon written reque st, Table II, using U.S. EPA Compendium Method TO-14.
4.4 Chain of Custody (Required for samples sent to the lab) A custody sheet shall accompany the bag samples. E ach time a bag changes hands, it shall be logged on the custody sheet with the time of custody transfer recorded. Laboratory personnel shall record the co ndition of the sample (full, three-fourths full, one-half full, one-fourth full, or empty). An example of a custody sheet is shown in Figure 4.
4.5 Recording the Results
4.5.1 Record the volume concentration of both TOC m easured as methane and the volume concentration for the required TAC on a quality control sheet as shown in Figure 3. Include a topographic map dr awn to scale with theRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 36

location of the gas collection and control systemgas collection and gas control systems clearly marked and identified. 4.5.2 Maintain and submit the results as specified in subdivision (f) of
Rule 1150.1.

5.0 AMBIENT AIR SAMPLES AT THE LANDFILL PROPERTY
BOUNDARY SubparagraphParagraph (e)( 56 ) Requirement of Rule 1150.1

5.1 Number of Samples Monthly ambient air samples shall be collected for analysis at the landfill property boundary from both an upwind and downwind sampler s ited to provide good meteorological exposure to the predominant offshore (drainage land breeze) and onshore (sea breeze) wind flow patterns. The upwin d and downwind samples shall be collected simultaneously over two 12 hour periods beginning between 9:00 a.m. and 10:00 a.m., and 9:00 p.m. and 10:00 p .m. on the same day or different days. 5.2 Ambient Air Sampling Conditions Ambient air sampling shall be conducted on days whe n stable (offshore drainage) and unstable (onshore sea breeze) meteorological co nditions are representative for the season. Preferable sampling conditions are cha racterized by the following meteorological conditions: 5.2.1 Clear cool nights with wind speeds of two mil es per hour or less, and 5.2.2 Onshore sea breezes with wind speeds ten mile s per hour or less. No sampling will be conducted if the following adve rse meteorological conditions
exist: 5.2.3 Rain, 5.2.4 Average wind speeds greater than 15 miles per hour for any 30-minute period, or 5.2.5 Instantaneous wind speeds greater than 25 mil es per hour. Continuously recorded on-site wind speed and direct ion measurements required in paragraph (d)( 917 ) of Rule 1150.1 will characterize the micrometeoro logy of the site and serve to verify that the meteorological cr iteria have been met during sampling.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 37 5.3 Ambient Air Sampler Equipment Description An ambient air sampling unit consists of a 10-liter Tedlar bag, a DC-operated pump, stainless steel capillary tubing to control t he sample rate to the bag, a bypass valve to control the sample flow rate (and m inimize back pressure on the pump), a Rotameter for flow indication to aid in se tting the flow, a 24-hour clock timer to shut off the sampler at the end of the 24- hour sampling period, and associated tubing and connections (made of stainles s steel, Teflon, or borosilicate glass to minimize contamination and reactivity). T he physical layout of the sampler is shown in Figure 5. An alternate ambient air sampler may be used, provi ded that the landfill owner or operator can show an equivalency with the sampler s pecifications in Section 5.3 and shown in Figure 5. All alternatives shall be s ubmitted as specified in subdivision (i) of Rule 1150.1.
5.4 Ambient Air Sampler Equipment Specifications The equipment used when conducting air samples at a ny landfill property boundary shall meet the following specifications: 5.4.1 Power: one 12V DC marine battery. The marin e battery provides 12V DC to the pump and the clock. 5.4.2 Pump: one 12V DC pump. The diaphragm shall be made of nonlubricated Viton rubber. The maximum pump unloaded flow rate shall be 4.5 liters per minute. 5.4.3 Bag: One 10-liter Tedlar bag with a valve. The Tedlar bag shall be
enclosed in a LIGHT-SEALED CONTAINER. The valve is a push-pull type constructed of aluminum and stainless steel, w ith a Viton or Buna-N (butadiene acrylonitrile co-polymer) o-ring seal. 5.4.4 Rotameter: made of borosilicate glass and has a flow range of 3-to-50 cubic centimeters per minute. The scale is in mill imeters (mm) with major graduations (labeled) every 5 mm and minor gr aduations every 1

mm. 5.4.5 Air flow control orifice: 316 stainless stee l capillary tubing. 5.4.6 Bypass valve. 5.4.7 Fittings, tubing, and connectors: 315 stainle ss steel or Teflon. 5.4.8 Clock timer with an accuracy of better than 1 %.Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 38 5.5 Ambient Air Sample Analytical Procedures Samples collected must be analyzed no later than 72 hours after collection for TOC using U.S. EPA Method 25, 40 CFR, Part 60, Appe ndix A analysis or a portable FID that meets the requirements in Section 3.2 and for the TAC specified in Table 1 and upon written request, Table II, usin g U.S. EPA Compendium
Method TO-14.
5.6 Chain of Custody (Required for samples sent to the lab) A custody sheet shall accompany the bag samples. E ach time a bag changes hands, it shall be logged on the custody sheet with the time of custody transfer recorded. Laboratory personnel shall record the co ndition of the sample (full, three-fourths full, one-half full, one-fourth full, or empty). An example of a custody sheet is shown in Figure 4.
5.7 Recording the Results
5.7.1 Record the volume concentration of TOC measur ed as methane and the volume concentration of TAC for each sample on a qu ality control sheet as shown in Figure 3. Include a topographic map dr awn to scale with the location of both the upwind and downwind samplers a nd the gas collection and control systemgas collection and gas control sy stems clearly marked
and identified. 5.7.2 Record the wind speed and direction during th e 24-hour sampling period using the wind speed and direction monitoring syste m required in paragraph (d)( 917 ) of Rule 1150.1. 5.7.3 Maintain and submit the results as specified in subdivision (f) of
Rule 1150.1.Rule 1150.1 (Cont.)(AmendedMarch 17, 2000April 1, 2011)(Attachment A Continued)1150.1 - 39Inlet ProbeTedlarBagRotameterBatteries+PumpCardboard BoxInOutPORTABLE INTEGRATED BAG SAMPLERPhysical LayoutFigure 1Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011 )

(Attachment A Continued)

1150.1 - 40 Typical Landfill Walk Pattern for a 50,000 Square Foot Grid

Figure 2 500 Feet 100 Feet

25 FeetRule 1150.1 (Cont.)(AmendedMarch 17, 2000April 1, 2011)(Attachment A Continued)1150.1 - 41TYPICALQUALITY CONTROL SHEET•Prior to use, the Tedlar bag system shall be leak checked, evacuated and filled with purified nitrogenthree times to flush out the old sample.•All samples must be kept in LIGHT-SEALED CONTAINERSto avoid photochemical reactions.OPERATIONBAG SAMPLESCOMMENTSGrid orprobe #Date WindSpeedTimeOnTimeOffI.D.# ValveOpenRotameterReadingPump(On/Off)Signature:Figure 3Rule 1150.1 (Cont.)(AmendedMarch 17, 2000April 1, 2011)(Attachment A Continued)1150.1 - 42BAG SAMPLE CUSTODY FORMProjectDate:Bag (I.D. #)Condition Received in Lab*Bags Prepared By: Time:Date:Bags Taken Out By: Time:Bags Taken to Lab ByBags Received In Lab By: Time* F = 1/2 full to full, 0 = Overfull (Bulging), L =1/4 to 1/2 full,E = Less than 1/4 full but contains some sample, N= No sample at all.Figure 4Rule 1150.1 (Cont.)(AmendedMarch 17, 2000April 1, 2011)(Attachment A Continued)1150.1 - 43Sample BagClock24 VoltBattery-+Pump+-InletBypassValveRotometerCritical OrificeFigure 5AMBIENT AIR SAMPLERPhysical LayoutRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011)

1150.1 - 44 TABLE 1 - CARCINOGENIC AND TOXIC AIR CONTAMINANTS

(Core Group) Paragraph (e)(2), Subparagraphs (k)(3)(F) and (k)(3 )(G) Requirements of
Rule 1150.1

1. Benzene C 6 H 6 2. Benzyl Chloride C 6 H 5 H 2 C1
3. Chlorobenzene C 6 H 5 C1 4. 1,2 Dibromoethane (Ethylene Dibromide) BrCH 2 CH 2 Br
5. Dichlorobenzene C 6 H 4 C1 2 6. 1,1 Dichloroethane (Ethylidene Chloride) CH 3 CHC1 2 7. 1,2 Dichloroethane (Ethylene Dichloride) C1H 2 H 2 C1 8. 1,1 Dichloroethene (Vinylidene Chloride) CH 2 : CC1 2 9. Dichloromethane (Methylene Chloride) CH 2 C1 2 10. Hydrogen Sulfide H 2 S 11. Tetrachloroethylene (Perchloroethylene) C1 2 C : CC1 2 12. Tetrachloromethane (Carbon Tetrachloride) CC1 4 13. Toluene C 6 H 5 CH 3 14. 1,1,1 Trichloroethane (Methyl Chloroform) CH 3 CC1 3 15. Trichloroethylene CHC1 : CC1 2 16. Trichloromethane (Chloroform) CHC1 3 17. Vinyl Chloride CH 2 : CHC1 18. Xylene C 6 H 4 (CH 3 ) 2Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011)

1150.1 - 45 TABLE 2 - CARCINOGENIC AND TOXIC AIR CONTAMINANTS

(Supplemental Group) Paragraph (e)(2), Subparagraphs (k)(3)(F) and (k)(3 )(G) Requirements of
Rule 1150.1

1. Acetaldehyde CH3CHO
2. Acrolein CH2CHCHO 3. Acrylonitrile H2C : CHCN 4. Allyl Chloride H2C : CHCH2C1 5. Bromomethane (Methyl Bromide) CH3Br
6. Chlorinated Phenols 7. Chloroprene H2C : CHCC1 : CH2
8. Cresol CH3C6H4OH 9. Dialkyl Nitrosamines 10. 1,4 - Dioxane OCH2CH2OCH2CH2 11. Epichlorohydrin CH2OCHCH2C1 12. Ethylene Oxide CH2CH2O 13. Formaldehyde HCHO 14. Hexachlorocyclopentadiene C5C16
15. Nitrobenzene C6H5NO2
16. Phenol C6H5OH 17. Phosgene COC12 18. Polychlorinated Dibenzo-P-Dioxin 19. Polychlorinated Dibenzo Furan 20. Polychlorinated Biphenols 21. Polynuclear Aromatic Hydrocarbons 22. Propylene Oxide CH2-CH-CH3 23. Tetrahydrothiophene CH2CH2CH2CH2S 24. Thiophene CHCHCHCHSRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011)

1150.1 - 46 

### Attachment B

TITLE 27. Environmental Protection

Division 2. Solid Waste
Subdivision 1. Consolidated Regulations for Treatme nt, Storage, Processing or Disposal of Solid Chapter 3. Criteria for All Waste Management Units, Facilities, and Disposal Sites

Subchapter S. Closure and Post-Closure Maintenance
Article 2. Closure and Post-Closure Maintenance St andards for Disposal Sites and
Landfills §21140. Section CIWMB -- Final Cover. (Tl4:§17773 )

(a) The final cover shall function with minimum mai ntenance and provide waste containment to protect public health and safety by controlling at a minimum, vectors, fire, odor, litter and landfill gas migration. The final cover shall also be compatible with postclosure land use. (b) In proposing a final cover design meeting the r equirements under §21090, the owner or operator shall assure that the proposal me ets the requirements of this section. Alternative final cover designs shall meet the perf ormance requirements of ¶(a) and for MSWLF units, 40 CFR 258.60(b); shall be approved by the enforcement agency for aspects of ¶(a). (c) The EA may require additional thickness, qualit y, and type of final cover depending on, but not limited to the following: (1) a need to control landfill gas emissions and fi res; (2) the future reuse of the site; and (3) provide access to all areas of the site as need ed for inspection of monitoring and control facilities, etc.

NOTE

Authority cited: Sections 40502 and 43020, Public R esources Code; and Section 66796.22 (d), Government Code. Reference: Sections 43021 and 43103, Public Resources Code; and Section 66796.22(d), Government Code.

HISTORY

1. New section filed 6-18-97; operative 7-18-97 (Re gister 97, No. 25).Rule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011)

1150.1 - 47 

### Attachment C

TITLE 27. Environmental Protection Division 2. Solid Waste Subdivision 1. Consolidated Regulations for Treatm ent, Storage, Processing or Disposal of Solid Chapter 3. Criteria for All Waste Management Units , Facilities, and Disposal Sites Subchapter 2. Siting and Design Article 2. SWRCB -- Waste Classification and Manag ement §20200. SWRCB -- Applicability and Classification Criteria. (CI5: §2520)

(a) Concept--This article contains a waste classifi cation system which applies to solid wastes that cannot be discharged directly or indire ctly to waters of the state and which therefore must be discharged to waste management un its (Units) for treatment, storage, or disposal in accordance with the requirements of thi s division. Wastes which can be discharged directly or indirectly (e.g., by percolation ) to waters of the state under effluent or concentration limits that implement app licable water quality control plans (e.g., municipal or industrial effluent or process wastewater ) are not subject to the SWRCB-promulgated provisions of this division. Thi s waste classification system shall provide the basis for determining which wastes may be discharged at each class of Unit. Waste classifications are based on an assessment of the potential risk of water quality degradation associated with each category of waste. (1) The waste classifications in this article shall determine where the waste can be discharged unless the waste does not consist of or contain municipal solid waste (MSW) and the discharger establishes to the satisfaction of the RWQCB that a particular waste constituent or combination of constituents presents a lower risk of water quality degradation than indicated by classification accord ing to this article. (2) Discharges of wastes identified in §20210 or §2 0220 of this article shall be permitted only at Units which have been approved an d classified by the RWQCB in accordance with the criteria established in Article 3 of this subchapter, and for which WDRs have been prescribed or waived pursuant to Art icle 4, Subchapter 3, Chapter 4 of this subdivision (§21710 et seq.). Table 2.1 (of th is article) presents a summary of discharge options for each waste category. (b) Dedicated Units/Cells For Certain Wastes--The f ollowing wastes shall be discharged only at dedicated Units [or dedicated la ndfill cells (e.g., ash monofill cell )] which are designed and constructed to contain such wastes: (1) wastes which cause corrosion or decay, or other wise reduce or impair the integrity of containment structures; (2) wastes which, if mixed or commingled with other wastes can produce a violent reaction (including heat, pressure, fire or explosion), can produce toxic byproducts, or can produce any reaction product(s) which: (A) requires a higher level of containment; (B) is a restricted waste; or (C) impairs the integrity of containment structures

. (c) Waste Characterization--Dischargers shall be re sponsible for accurate characterization of wastes, including determination s of whether or not wastes will beRule 1150.1 (Cont.) (Amended March 17, 2000April 1, 2011)

1150.1 - 48 compatible with containment features and other wast es at a Unit under ¶(b), and whether or not wastes are required to be managed as hazardo us wastes under Chapter 11 of Division 4.5 of Title 22 of this code. (d) Management of Liquids at Landfills and Waste Pi les--The following requirements apply to discharges of liquids at Class II waste pi les and at Class II and Class III landfills, except as otherwise required for MSW landfills by m ore-stringent state and federal requirements under SWRCB Resolution No. 93-62 secti on 2908 of Title 23 of this Code (see 40CFR258.28) [Note: see also definitions of "leachate” and "land fill gas condensate” in §20164 ]: (1) [Reserved.];

(2) wastes containing free liquids shall not be dis charged to a Class II waste pile. Any waste that contains liquid in excess of the moi sture-holding capacity of the waste in the Class II landfill, or which contains liquid in excess of the moisture-holding capacity as a result of waste management operations, compact ion, or settlement shall only be discharged to a surface impoundment or to another U nit with containment features equivalent to a surface impoundment; and (3) liquids or semi-solid waste (i.e., waste contai ning less than 50 percent solids, by weight), other than dewatered sewage or water treat ment sludge as described in §20220(c), shall not be discharged to Class III lan dfills. Exceptions may be granted by the RWQCB if the discharger can demonstrate that su ch discharge will not exceed the moisture-holding capacity of the landfill, either i nitially or as a result of waste management operations, compaction, or settlement, s o long as such discharge is not otherwise prohibited by applicable state or federal requirements.