Printer-friendlySubpart 360-2: Landfills - Page 2
(Statutory authority: Environmental Conservation Law, Sections 1-0101, 3-0301, 8-0113,19-0301, 19-0306, 23-2305, 23-2307, 27-0101, 27-0106, 27-0107, 27-0109, 27-0305, 27-0703, 27-0704, 27-0705, 27-0911, 27-1317, 27-1515, 52-0107, 52-0505, and 70-0107)
Revised Effective March 27, 1990; with promulgation of new Subpart 15: Grants for Comprehensive Solid Waste Management Planning.
Revised Effective May 28, 1991; With repeal of existing Subpart 9 and promulgation of new Subpart 9: State Assistance for Municipal Landfill Closure Projects
Revised Effective January 25, 1992; With repeal of existing Subpart 10 and promulgation of new Subpart10: Regulated Medical Waste Storage, Transfer, and Disposal, and new Subpart 17 Regulated Medical Waste Treatment Facilities.
Revised/Enhanced Effective October 9, 1993; with adoption of amendments to existing Subparts 1 through 17
Revised Effective December 14, 1994; with adoption of amendments to existing Subpart 9: State Assistance for Municipal Landfill Closure Projects
Revised Effective January 14, 1995; With repeal of existing Subpart 14 and promulgation of new Subpart 14: Used Oil.
Revised Effective November 26, 1996; With adoption of amendments to existing Subparts 1, 2, 3, 7, 11, 14, and 17
Revised Effective September 29, 1997; With adoption of amendments to existing Subpart 9
Revised Effective November 21, 1998; With adoption of amendments to existing Subpart 2
Revised Effective November 24, 1999; With adoption of amendments to existing Subparts 2, 3, 4, 5, 9, 11, 14, and 16]
Contents:
Sec.
§360-2.11 Hydrogeologic report.
The hydrogeologic report must define the landfill site geology and hydrology and relate these factors to regional and local hydrogeologic patterns; define the critical stratigraphic section for the site; provide an understanding of groundwater and surface water flow at the site sufficient to determine the suitability of the site for a landfill; establish an environmental monitoring system capable of readily detecting a contaminant release from the facility and determining whether the site is contaminating surface or subsurface waters; and form the basis for design of the facility and contingency plans relating to ground or surface water contamination or gas migration as required in section 360-2.10 of this Subpart. The scope and extent of investigations necessary in the hydrogeologic report will vary based upon the hydrogeologic complexity of the site and the ability of the site to restrict contaminant migration. Additionally, the hydrogeologic report must define the engineering properties of the site as necessary for proper design and construction of any facilities proposed to be built at the site.
(a) Requirements of the site investigation plan. The site investigation plan must clearly define all methods used in investigating the hydrogeologic conditions of the site, the scope of the intended investigation, and any specific hydrogeologic questions to be addressed. The applicant is strongly encouraged to develop a draft version of the plan for review by the department before starting the hydrogeologic investigation that begins to define the critical stratigraphic section, and to keep the department informed of the findings and subsequent investigative proposals as the study proceeds. The final version of the plan, included in the hydrogeologic report section of the permit application, must fully describe all methods of investigation used. Unless otherwise approved by the department, the plan must comply with the following:
(1) General requirements for all methods used. In obtaining the required hydrogeologic information, the applicant must employ current, standard, and generally accepted procedures. All work must be done in accordance with applicable American Society for Testing Materials standards or current and appropriate U.S. Environmental Protection Agency and department guidance documents. Alternative or innovative methodologies may be approved by the department; however, the department may initially require redundant technologies to prove the reliability of a new methodology. All procedures must be conducted under the supervision of a qualified groundwater scientist having experience in similar hydrogeologic investigations, in a manner that ensures accuracy of the data and precludes environmental degradation. The location of all installations, geophysical and geochemical surveys, and seismic lines for the proposed investigation must be shown on a map with the same scale and coordinate grid system used on the engineering plans (see section 360-1.9[e] of this Part).
(2) Literature search. A comprehensive search must be made for pertinent and reliable information concerning regional and site specific hydrogeologic conditions. The literature search must include, as available, records and reports of the New York State Department of Health, the New York State Department of Transportation, the U.S. Soil Conservation Service, and the New York State Geological Survey; basin planning reports, groundwater bulletins, water supply papers, professional papers and other open file reports of the U.S. Geological Survey; bulletins, circulars, map and chart series, memoirs and other publications of the New York State Geologic Survey; publications and bulletins of the Geological Society of America and other professional organizations; and publications of the U.S. Environmental Protection Agency and the department, college and university reports; and aerial photography or remotely sensed imagery.
(3) Surficial geologic mapping. The site must be mapped to determine the distribution of surficial deposits on and surrounding the site based upon information from the hydrogeologic investigation, field evaluations, and field confirmation of all interpretations made on the site itself.
(4) Test pits. Test pits may be used to determine shallow stratigraphy. The test pits must not create a health or safety hazard and must be logged by a geologist or geotechnical engineer with experience in similar hydrogeologic investigations. Logs must include: elevations; surface features before excavation; depth of the test pit and of all relevant horizons or features; moisture content of units; standard soil classifications (including the Unified Soil Classification System), stratigraphy, soil structure, bedrock lithology, brittle, or secondary structures in soil and bedrock; and a sketch showing these features for each test pit constructed. Test pits must be promptly backfilled and compacted with excavated materials. The department may require that, if a test pit is dug, undisturbed soil samples be taken and tested in accordance with subparagraph (9)(ii) of this subdivision.
(5) Water well surveys. A survey of public and private water wells within one mile downgradient and one-quarter mile upgradient of the proposed site must be conducted. Surveys must obtain, where available, the location of wells, which must be shown on a map with their approximate elevation and depth, name of owner, age and usage of the well; stratigraphic unit screened; well construction; static water levels; well yield; perceived water quality; and any other relevant data which can be obtained.
(6) Geophysical and geochemical surveys. The department may require the use of geophysical and geochemical methods, such as electromagnetic, resistivity, seismic surveys, remote sensing surveys, downhole geophysics, isotope geochemistry, and soil gas analysis, where necessary to justify the interpretations and conclusions of the site investigation report and to provide information between boreholes, and aid in the siting of wells.
(7) Tracer studies. The department may require the use of tracer studies to aid in understanding groundwater flow or to otherwise assist in devising an effective environmental monitoring plan.
(i) Where sites overlie weathered limestone or dolostone bedrock or where karst environments cannot be avoided, the department may require tracer studies before finalizing the bedrock monitoring plan. Tracer studies must identify, in specific detail, areas of groundwater flow from the facility attributed to secondary permeability, recharge and discharge areas on and surrounding the site, storage of groundwater, and variations of water quality seasonally and during high and low flow periods.
(ii) Where a site is otherwise unmonitorable because of existing contamination, the department may allow the use of tracers to aid in monitoring.
(8) Monitoring wells and piezometers.
(i) Construction in general.
(a) Monitoring wells and piezometers must define the three-dimensional flow system within the critical stratigraphic section to justify the interpretations and conclusions of the hydrogeologic report.
(b) Construction techniques must be appropriate to ensure that groundwater samples and head level measurements characterize discrete stratigraphic intervals; and to prevent leakage of groundwater or contaminants along the well annulus. If leakage is detected, it must be corrected or the well abandoned.
(c) Monitoring wells and piezometers may be placed individually or as well clusters. Well clusters consist of individual wells at varying depths in close proximity, each installed in its own boring. Multiple wells placed into one large borehole are prohibited unless prior department approval in writing is obtained.
(d) Soil borings, soil samples, and rock cores must characterize each stratigraphic unit within the critical stratigraphic section to justify the interpretations and conclusions of the hydrogeologic report.
(e) Every precaution must be taken during drilling and construction of monitoring wells to avoid introducing contaminants into a borehole. Only potable water of known chemistry may be used in drilling monitoring wells or piezometers unless otherwise approved by the department.
(f) All equipment placed into the boring must be properly decontaminated before use at the site and between boreholes. The initial cleaning at the site must ensure that no contaminants from the last site drilled will be introduced into the borings. All equipment must be steam cleaned between holes. Where possible, upgradient wells should be drilled first.
(g) Use of drilling muds is to be avoided unless prior department approval in writing is granted. If drilling muds are used, the material used must avoid the introduction of stray contaminants. Drilling muds must not be used within 10 feet of the screened interval.
(h) Air systems and drilling lubricants must not introduce contaminants into the borehole.
(i) Well borings must have an inside diameter at least two inches larger than the outside diameter of the casing and screen to ensure that a tremie may be properly used.
(j) Wells and borings must not be placed through or into waste unless prior department approval has been granted and sufficient safety precautions are employed. If waste is encountered unexpectedly during drilling, drilling of that boring must cease, the hole properly abandoned with cuttings properly disposed of and the department notified.
(ii) Construction of monitoring wells and piezometers.
(a) Well screens and risers must be constructed of materials selected to last for the required monitoring period of the facility without contributing contaminants to, or removing contaminants from, the groundwater. All materials used are subject to department approval. Joints, caps, and end plugs are to be secured by welds, threads with teflon tape, or force fittings. Solvents and glues or other adhesives are prohibited. Caps must be vented to allow for proper pressure equalization. The inside diameter of each well screen or riser pipe must be nominally two inches in diameter and must allow for proper development, survey and sampling equipment to be used within the screen and casing. A permanent mark should be made at the top of the riser pipe to provide a datum for subsequent water level measurements.
(b) Unless otherwise approved by the department, well screens are required for all wells and piezometers. All screens used must be factory constructed non-solvent welded/bonded continuous slot wire wrap screens of a material appropriate for long-term monitoring without contributing contaminants to or removing contaminants from the groundwater. The slot size of the screen must be compatible with the sand pack. Water table variations, site stratigraphy, expected contaminant behavior, and groundwater flow must be considered in determining the screen length, materials, and position. Where existing contamination is suspected or known, down hole geophysical techniques may be required by the department to aid in selecting well screen elevations.
(c) The sand pack surrounding the well screen must consist of clean,inert, siliceous material. Grain size must be based upon a representative sieve analysis of the zone to be screened. The sand pack must minimize the amount of fine materials entering the well and must not inhibit water inflow to the well. The sand pack must be placed in the annular space around the well screen and extend two feet or 20 percent of the screen length (whichever is greater) above the top, and six inches below the bottom, of the screen. The sand pack material must be placed using the tremie method or another method approved by the department and must avoid bridging. The sand pack must be checked for proper placement. A finer grained sand pack material (100 percent passing the No. 30 sieve and less than two percent passing the No. 200 sieve) six inches thick must be placed at the top of the sand pack between the sand and the bentonite seal.
(d) Bentonite must be placed above the sand pack using the tremie or other approved method to form a seal at least three feet thick. A 6 to 12 inch fine grained sand pack must be placed above the bentonite seal to minimize grout infiltration. If pellets or chips are used, sufficient time should be allotted to allow for full hydration of the bentonite prior to emplacement of overlying materials.
(e) Grout of cement/bentonite, bentonite alone, or other suitable, low permeability material, if approved by the department, must completely fill the remaining annular space to the surface seal. The grout mixture must set up without being diluted by formation water, and must displace water in the annular space to ensure a continuous seal. The grout mixture must be placed under pressure using a tremie or other method approved by the department. Auger flights or casing must be left in the hole before grouting to prevent caving. The cement used must be appropriate for the groundwater chemistry of the site.
(f) A protective steel casing, at least two inches larger in diameter than the well casing, must be placed over the well casing or riser pipe and secured in a surface well seal to adequately protect the well casing. A distinctive, readily visible marker must be permanently affixed to the protective casing or near the well to identify the well number and ensure visibility even in periods of high snow cover. A drain hole must be drilled at the base of the protective casing. A vent hole must be located near the top of the protective casing to prevent explosive gas build up and to allow water levels to respond naturally to barometric pressure changes. The annulus of the protective casing should be filled with gravel. A locking cap must be installed with one to two inches clearance between the top of the well cap and the bottom of the locking cap when in the locked position and a weather resistant padlock must be placed on the protective casing and duplicate keys provided to the department.
(g) A concrete surface seal designed to last throughout the planned life of the monitoring well must be constructed. The surface seal must extend below the frost depth to prevent potential well damage. The top of the seal must be constructed by pouring the concrete into a pre-built form with a minimum of three foot long sides. The seal must be designed to prevent surface runoff from ponding and entering the well casing. In areas where traffic may cause damage to the well, bumperguards or other suitable protection for the well is required. Any damaged or deteriorated surface seals must be reported to the department and repaired or replaced in an appropriate manner. The department may allow alternate designs when documentation is presented which demonstrates the intent of the regulations.
(h) Where under the circumstances of a particular situation the department believes that the methods identified in this section are inadequate, it may require that additional measures be taken to prevent migration of contaminants along the annulus of the well or to protect the well.
(i) Alternative construction methods for piezometers and wells which are not to be part of the environmental monitoring plan may be approved by the department if those methods meet the requirements set forth in clause (i)(b) of this paragraph.
(iii) Well and piezometer development. All wells and piezometers must be developed as soon as possible after installation, but not before the well seal and grout have set. Water must not be introduced into the well for development, except with approval of the department. Any contaminated water withdrawn during development must be properly managed. Development must not disturb the strata above the water-bearing zone or damage the well. The entire saturated screened interval must be developed. The department may require multiple attempts at well development to increase the likelihood that sediment free water can be obtained. Development methods should be appropriate for conditions/stratigraphy encountered. Placement of screens in a fine grained strata may require gentle development techniques to avoid pulling sediment into the well. The selected method must minimize to the greatest extent possible the amount of turbidity in the well.
(iv) Survey. The locations and elevations of all existing and abandoned test pits, soil borings, monitoring wells, and piezometers must be surveyed to obtain their precise location and plotted on a map in the hydrogeologic report. The vertical location of the ground surface and the mark made on the top of the monitoring well and piezometer risers must be accurately measured to the nearest 100th foot.
(v) Replacement of wells. All wells must be properly protected to ensure their integrity throughout the active and post-closure period of the facility. If, in the opinion of the department, water quality or other data show that the integrity of a well is lost, the well must be replaced and sampled within a time period acceptable to the department (but not to exceed 120 days) after written notification by the department. The initial sample for the replacement well must be analyzed for baseline parameters in the Water Quality Analysis Tables in this section.
(vi) Abandonment of wells. All soil borings or rock cores which are not completed as monitoring wells or piezometers and other abandoned wells must be fully sealed in a manner appropriate for the geologic conditions to prevent contaminant migration through the borehole. Generally, such sealing must include:
(a) Overboring or removal of the casing to the greatest extent possible, followed by perforation of any casing left in place. All casing and well installations in the upper five feet of the boring, or within five feet of the proposed level of excavation, must be removed.
(b) Sealing by pressure injection with cement bentonite grout, using a tremie pipe or other method acceptable to the department, must extend the entire length of the boring to five feet below the ground surface or the proposed excavation level. The screened interval of the borehole must be sealed separately and tested to ensure its adequacy before sealing the remainder of the borehole. Where the surrounding geologic deposits are highly permeable, alternate methods of sealing may be required to prevent the migration of the grout into the surrounding geologic formation. The upper five feet must be backfilled with appropriate native materials compacted to avoid settlement.
(c) The sealed site must be restored to a safe condition. The site must be inspected periodically after sealing for settlement or other conditions which require remediation.
(9) Geologic sampling.
(i) All borings and rock cores must be sampled continuously to the base of the critical stratigraphic section. For well clusters, continuous samples must be collected from the surface to the base of the deepest well. Other wells in the cluster must be sampled at all stratigraphic changes, and at the screened interval. At sites where the geology is not of a complex nature the department may allow a reduction in the number of wells requiring continuous sampling. Soil borings must be sampled using the split spoon method and bedrock or boulders must be sampled by coring with standard size NX or larger diameter core bits. Samples must be retained in labeled glass jars or wooden core boxes. All samples must be securely stored and accessible throughout the life of the facility. The location of the storage area must be designated in the operation and maintenance plan for the facility.
(ii) A representative number of undisturbed samples must be collected from test pits and soil borings using appropriate methods to identify the soil characteristics of all cohesive soil units. Such samples must be analyzed in the laboratory for: Atterberg limits; gradation curves by sieve or hydrometer analysis or both, as appropriate; undisturbed permeabilities; and visual descriptions of undisturbed soil structures and lithologies.
(10) Logs.
(i) Complete and accurate drilling logs must be provided to the department for all soil borings. These logs must provide detailed soil classification according to the Unified Soil Classification System (USCS). The USCS visual method must be used on all samples supplemented by the USCS laboratory tests on a representative number of samples from each stratigraphic unit and each screened interval. Logs also must contain a description of matrix and clasts, mineralogy, roundness, color, appearance, odor, and behavior of materials using an appropriate descriptive system. A clear description of the system used must be included with the logs. When undisturbed samples have been taken, the interval tested and the test results must be clearly shown on the logs. All well logs must contain drilling information as observed in the field including: moisture content, location of the water table during drilling, water loss during drilling; depth to significant changes in material and rock; sample recovery measured in tenths of a foot; hammer blow counts, and other pertinent comments; the method of drilling, anomalous features such as gas in the well, and the use and description of drilling fluids or additives, including the source, and calculated and actual amounts of materials used.
(ii) Rock core logs must describe the lithology, mineralogy, degree of cementation, color, grain size, and any other physical characteristics of the rock; percent recovery and the rock quality designation (RQD); other primary and secondary features, and contain all drilling observations and appropriate details required for soil boring logs. A clear photograph of all labeled cores must also be taken and submitted with the logs.
(iii) Well completion logs must contain a diagram of the completed well, all pertinent details on well construction, a description of the materials used, and elevations of all well features.
(iv) Copies of original field logs must be submitted to the department upon request.
(11) In situ hydraulic conductivity testing.In situ hydraulic conductivity testing must be done in all monitoring wells and piezometers, unless other methods that are approved by the department, are used. The testing method used must not introduce contaminants into the well. If contamination is known or suspected to exist, all water removed must be properly managed. Hydraulic conductivities may be determined using pump tests, slug tests, packer tests, tracer studies, isotopic geochemistry, thermal detection, or other suitable methods.
(b) Site investigation report. The site investigation report must include a final version of the site investigation plan, raw field data, analytical calculations, maps, flow nets, cross-sections, interpretations (and alternative interpretations where applicable), and conclusions. All maps, drawings and diagrams must have a minimum scale of 1:24,000, unless otherwise acceptable to the department. Such report must comprehensively describe:
(1) Regional geology. The discussion of regional geology must demonstrate how the regional geology relates to the formation of on-site geologic materials, the potential for and effects of off-site contaminant migration, and the location of nearby sensitive environments. This discussion must include available and appropriate information to describe:
(i) bedrock stratigraphy and structural features (represented on maps and columnar diagrams) constructed from field exposures and the geologic literature, describing formation and member names, geologic ages, rock types, thicknesses, the units' mineralogic and geochemical compositions and variabilities, rock fabrics, porosities and bulk permeabilities, including karst development, structural geology, including orientation and density or spacing of folds, faults, joints, and other features;
(ii) glacial geology, including a discussion of the formation, timing, stages, and distribution of glacial deposits, advances and retreats, hydrologic characteristics of the surficial deposits, such as kames, eskers, outwash moraines, etc.;
(iii) major topographic features, their origin and influence upon drainage basin characteristics; and
(iv) surface water and groundwater hydrologic features, including surface drainage patterns, recharge and discharge areas, wetlands and other sensitive environments, inferred regional groundwater flow directions, aquifers, aquitards and aquicludes, known primary water supply and principal aquifers, public water supply wells, and private water supply wells identified in the water supply well survey; any known peculiarities in surface water and groundwater geochemistry, and any other relevant features.
(2) Site-specific geology. The site investigation report must define site hydrogeologic conditions in three dimensions and their relationship to the proposed landfill. The report must define site geology, surface water and groundwater flow, and must relate site-specific conditions to the regional geology. The report must describe the potential impact the landfill may have on surface and groundwater resources and other receptors, including future hydrogeologic conditions, which may occur with site development, and it must describe the hydrogeologic conditions in sufficient detail to construct a comprehensive understanding of groundwater flow, which can be quantified and verified through hydrologic, geochemical, and geophysical measurements. The report must provide sufficient data to specify the location and sampling frequency for environmental monitoring points; form the basis for contingency plans regarding groundwater and surface water contamination and explosive gas migration; and support the engineering design of the landfill. The site- specific hydrogeologic evaluation must specifically discuss all units in the critical stratigraphic section. Such evaluation must include maps, cross- sections, other graphical representations, and a detailed written analysis of the following:
(i) all hydrogeologic units such as aquifers, aquitards and aquicludes, and how they relate to surface water and groundwater flow. This must include all hydrogeologic data collected during the site investigation and explain and evaluate the hydrologic and engineering properties of the site and each specific unit; and
(ii) local groundwater recharge and discharge areas, high and low groundwater tables and potentiometric surfaces for each hydrologic unit, vertical and horizontal hydraulic gradients, groundwater flow directions and velocities, groundwater boundary conditions, surface water and groundwater interactions, and an evaluation of existing water quality.
(c) Environmental monitoring plan. The environmental monitoring plan must describe all proposed on-site and off-site monitoring, including the location of all environmental, facility, and other monitoring points, sampling schedule, analyses to be performed, statistical methods, and reporting requirements. The plan must also include a schedule for construction of the groundwater monitoring wells based on site-specific hydrogeology and the sequencing of construction of landfill cells; a schedule for initiation of the existing water quality and operational water quality monitoring programs and a contingency water quality monitoring plan which specifies trigger mechanisms for its initiation. Unless otherwise approved by the department, the plan must comply with the following:
(1) Groundwater sampling. Groundwater monitoring wells must be capable of detecting landfill-derived groundwater contamination within the critical stratigraphic section.
(i) Horizontal well spacing.
(a) Horizontal spacing of wells must be based upon site-specific conditions including groundwater flow rates, estimated longitudinal and transverse dispersivity rates, proximity to or presence of sensitive environments and groundwater users, the nature of contaminants disposed of at the site, and the proposed design and size of the landfill.
(b) In the first water-bearing unit of the critical stratigraphic section, monitoring well spacing must not exceed 500 feet along the downgradient perimeter of the facility. In sensitive environments or geologically complex environments, closer well spacing may be required. Upgradient or crossgradient well spacing must not exceed 1,500 feet and may be less in sensitive environments, or where up-gradient sources of contamination are known to exist. Subsequent water-bearing units must be monitored, as required by the department, based upon the potential for contaminant migration to that unit. Well spacing must provide at least one upgradient and three downgradient monitoring wells or well clusters for each water- bearing unit of the critical stratigraphic section.
(c) Sensitive environments or areas where public health concerns exist may be subject to more intensive groundwater monitoring requirements. In addition, the department may require the applicant to develop acceptable computer models of contaminant plume behavior from hypothetical leaks in the liner system, if necessary to determine optimum monitoring well spacing.
(d) In areas where waterflow is irregular and unpredictable and where otherwise determined to be appropriate, the applicant may be required to conduct spring, sinkhole, or other sampling to enhance the monitoring.
(e) All downgradient monitoring wells must be located as close as practical to but not more than 50 feet from the waste boundary, unless otherwise approved by the department due to site specific conditions, to ensure early detection of any contaminant plume.
(f) All upgradient and crossgradient monitoring wells must be placed far enough from the waste boundary to avoid any facility derived impacts.
(ii) Well screen placement.
(a) Well screens must be located to readily detect groundwater contamination within the saturated thickness of the first water-bearing unit, and must be installed at a representative number of points at each subsequent permeable unit throughout the critical stratigraphic section. Well screens must not act as conduits through impermeable layers. Wells monitoring the water table should be screened to ensure that the water table can be sampled at all times.
(b) Upgradient and crossgradient wells must monitor the same hydrologic units whenever possible within the critical stratigraphic section as the downgradient monitoring wells.
(iii) Screen length. Well screens must not exceed 20 feet in length, unless otherwise approved by the department. The applicant must provide technical justification for the actual screen length chosen.
(iv) Geophysical and geochemical techniques. Where existing contamination is suspected, the department may require the use of geophysical and geochemical techniques to locate contaminated zones before selecting well locations and screen depths for environmental monitoring points.
(v) If a groundwater suppression system exists at a facility, the department may require representative sampling points to be designated as environmental monitoring points. Existing water quality monitoring at these points may not be required.
(2) Surface water and sediment sampling. The environmental monitoring plan must designate monitoring points, for use in operational or contingency monitoring or both of the facility pursuant to subparagraphs (5)(ii) and (iii) of this subdivision, for all surface water bodies that may be significantly impacted by a contaminant release from the facility. Sampling activities at these monitoring points shall be for surface water and sediment. The department may require the sampling and analysis of surface water and sediment sampling points during a site investigation to understand site hydrogeology or existing patterns of contamination. In bodies of standing water, these points must be located at the closest point to the facility and must be included in existing water quality monitoring. In flowing water bodies, these points must include sufficient upgradient and downgradient locations to allow the facility's impact to be measured. These points, however, do not require existing water quality analysis. The detailed analysis requirements of these points must be specified in the contingency monitoring plan and the detailed sampling requirements must be specified in the site analytical plan.
(3) Leachate sampling. The environmental monitoring plan must specify the location of facility leachate sampling points and parameters to be analyzed so as to obtain a representative characterization of the leachate composition in the primary leachate collection and removal system and to determine the nature of liquids detected in the secondary leachate collection and removal system. The following must be included:
(i) Sampling points. All sampling points should be located to minimize pumping of leachate before sampling. Sampling points in the secondary leachate collection system should be adequate to sample liquids beneath each discrete leachate collection area or landfill cell.
(ii) Analysis required. Except as allowed by the department when a specific waste stream and its leachate are already well defined, analysis of the leachate in the primary and secondary leachate collection and removal systems must be performed semi-annually for expanded parameters. The department may require the use of specific analytical methods in these analyses when minimum detection levels are determined inadequate to fully characterize leachate.
(4) Water supply well sampling. If sampling and analysis of water supply wells is to be performed, the analytical requirements must be in accordance with those specified in the site analytical plan. Sampling frequency and analysis shall be at least quarterly for baseline parameters. Sampling methods must be consistently applied each time a well is sampled and before sampling any residential well, the New York State Department of Health and/or local health department must be notified.
(5) Water quality monitoring program. A water quality monitoring program must be implemented for all environmental monitoring points specified in the environmental monitoring plan. This program must be tailored to the site to establish existing water quality for the site prior to landfilling, operational water quality during operation of the site and the post-closure period, and contingency water quality, if contamination is detected at the site. These programs must meet the following minimum requirements:
(i) Existing water quality. The applicant must establish an existing water quality database to characterize the site geochemistry.
(a) The permit application must contain a preliminary evaluation of water quality, consisting of the first two rounds of sampling and analyses for a representative number of monitoring points at both upgradient and downgradient locations, in each water bearing hydrogeologic unit within the critical stratigraphic section, with a minimum of two samples taken from each well during the first round of sampling, unless otherwise approved by the department. The first round of these samples must be analyzed for the expanded parameters. The second round must be analyzed for the baseline parameters, except as specified in clause (d) of this subparagraph. These samples should be taken in early spring and late summer, or equivalent, to approximate periods of high and low groundwater flow. The department may require sampling and analysis of additional monitoring points as necessary to define site hydrogeology and geochemistry in support of the interpretations and conclusions of the site investigation report.
(b) Before deposition of waste in the facility, all environmental monitoring points not previously sampled must be sampled and analyzed for four rounds of quarterly sampling. The first of these sampling rounds must be analyzed for expanded parameters and the other three rounds must be analyzed for baseline parameters. Those environmental monitoring points which were sampled in accordance with clause (a) of this subparagraph must be sampled and analyzed for baseline parameters for two rounds of samples. The samples shall be obtained at different times of the year than when the sampling required by clause (a) of this subparagraph was performed. If elevated contaminant levels were detected during the preliminary evaluation of water quality, then the sampling required in this clause shall be as specified in clause (d) of this subparagraph. The department may approve phased sampling, where hydrogeologic conditions warrant, as landfill cells are constructed. The sampling of these phased monitoring points shall commence at least one year prior to solid waste deposition and shall be in conformance with the requirements of clause (b) of this subparagraph or as approved by the department. As these phased monitoring points are added to the monitoring program, the procedures contained in clause (c) of this subparagraph shall be followed to reestablish existing water quality at the facility and recompute the standard deviation.
(c) Prior to facility operation, existing water quality must be established for each hydrogeologic flow regime being monitored at the site. Existing water quality for each hydrogeologic flow regime shall be the arithmetic mean, per parameter, of the analytical results of the samples obtained from those environmental monitoring points within that flow regime prior to deposition of solid waste; provided there is no reason to believe that the distribution of the analytical results was non-uniform. The standard deviation of the analytical results for each parameter within each flow regime shall also be established at that time. Should the department determine that the sampling results are non-representative of existing water quality or do not constitute a normal, uniform distribution, then the department shall specify such additional sampling and analyses as it deems necessary to confidently establish existing water quality at the site. For those facilities where solid waste has been placed previously in other than a contiguous landfill cell, the existing water quality may be based on only some of the environmental monitoring points, subject to the approval of the department.
(d) If elevated contaminant levels are detected and additional detailed information is needed to establish a complete existing water quality database, the department may require one or more rounds of baseline or expanded parameter sampling and analysis in any sampling point, using the procedure specified for contingency monitoring required in subparagraph (iii) of this paragraph when contamination is detected.
(e) Additional sampling and analysis beyond the site boundaries may be required to determine the nature and extent of contamination and the source, if possible. This evaluation may include construction, sampling, and analysis of any additional monitoring wells, and surface water sampling points required by the department. Based upon the results of this additional data, the department may require analysis for any and all expanded parameters, to be included in quarterly or annual operational water quality sampling.
(ii) Operational water quality. The environmental monitoring plan must include a plan for operational water quality monitoring to be conducted during the operation, closure, and post-closure periods of the facility. The operational water quality monitoring plan must be able to distinguish landfill-derived contamination from the existing water quality at the site. The plan must also describe trigger mechanisms for initiating contingency water quality monitoring. The department may require modification of this plan as additional sampling data becomes available during the life of the facility. The minimum requirements for operational water quality monitoring are:
(a) Except as provided below, in each calendar year sampling and analysis must be performed at least quarterly, once for baseline parameters and three times for routine parameters. The baseline sampling event must be rotated quarterly; one round of baseline parameters to be analyzed in each calendar year will be sufficient unless a pattern of contamination exists which may require the department to change the sampling frequency. For double lined landfills, the department may allow omission of the winter sampling once a complete understanding of water chemistry has been obtained, provided that a demonstration of acceptable liner performance is made to the department. The department will require sampling and analysis on a quarterly basis, alternately analyzing for routine and baseline parameters, at all landfills which do not have a liner system constructed in accordance with section 360-2.13(f) of this Subpart.
(b) The department may approve phased sampling, where hydrogeologic conditions warrant, as landfill cells are constructed or as post-closure monitoring is completed as specified in section 360-2.15(i) of this Subpart. With department approval, sampling of specific environmental monitoring points which are not potentially impacted by the portions of the landfill already constructed, may be deferred, provided that scheduled sampling commences at least one year before landfill construction in the vicinity. The department may withdraw this approval at any time, based upon a change in facility design, operation, or performance.
(c) Operational water quality analysis must include at least those parameters specified in the Water Quality Analysis Tables for routine and baseline parameters. The department may modify these tables before granting a permit for the facility, or during the duration of the permit, if leachate composition so warrants. If subsequent leachate compositions vary or if the waste disposed of at the facility changes, the department may adjust analytical requirements accordingly.
(d) Within 90 days of completing the quarterly field sampling activities, the facility owner/operator must determine whether or not there is a significant increase from existing water quality levels established for each parameter pursuant to clause (c)(5)(i)(c) of this section.
(1) In determining whether a significant increase has occurred, the facility owner/operator must compare the groundwater quality of each parameter at each monitoring well to the existing water quality value of that parameter.
(2) A significant increase has occurred if:
(i) the groundwater quality for any parameter at any monitoring well exceeds the existing water quality value for that parameter, as established pursuant to clause (c)(5)(i)(c) of this section, by three standard deviations; or
(ii) the groundwater quality for any parameter at any monitoring well exceeds the existing water quality value for that parameter, as established pursuant to clause (c)(5)(i)(c) of this section and exceeds the water quality standards for that parameter as specified in Part 701, 702, or 703 of this Title. (e) If the owner/operator determines, pursuant to clause (d) of this subparagraph, that there is a significant increase from existing water quality levels for one or more of the parameters during field sampling for the routine parameters, excluding the field parameters, at any monitoring well, the facility owner/operator:
(1) must, within 14 days of this finding, notify the department indicating which parameters have shown significant increases from existing water quality levels; and
(2) must sample and analyze all monitoring points for the baseline parameters during the next quarterly sampling event. Subsequent sampling and analysis for baseline parameters must be conducted at least semiannually until the significant increase is determined not to be landfill-derived or the department determines such monitoring is not needed to protect public health or the environment.
(f) If the owner/operator determines, pursuant to clause (d) of this subparagraph, that there is a significant increase from existing water quality levels for one or more of the parameters during field sampling for the baseline parameters, excluding the field parameters, at any monitoring well, the facility owner/operator:
(1) must, within 14 days of this finding, notify the department indicating which parameters have shown significant increases from existing water quality levels; and
(2) must establish a contingency monitoring program meeting the requirements of subparagraph (iii) of this paragraph within 90 days except as provided for in subclause (3) of this clause.
(3) The facility owner/operator may attempt to demonstrate to the department that a source other than the facility caused the contamination or that the significant increase resulted from error in sampling, analysis, or natural variation in groundwater quality. A report documenting this demonstration must be submitted to the department for approval. If a successful demonstration is made, documented and approved by the department, the facility owner/operator may continue operational water quality monitoring as specified in this subparagraph. If, after 90 days, a successful demonstration is not made, the owner/operator must initiate a contingency monitoring program as required in subparagraph (iii) of this paragraph.
(iii) Contingency water quality. The environmental monitoring plan must include a plan for contingency water quality monitoring, as described in this subparagraph, which must be conducted when a significant increase over existing water quality has been detected pursuant to clause (c)(5)(ii)(d) of this section for one or more of the baseline parameters listed in the Water Quality Analysis Tables. All contingency water quality monitoring plans are subject to department approval, may be modified at any time by the department when necessary to protect public health and the environment, and must include the following:
(a) Within 90 days of triggering a contingency water quality monitoring program, the facility owner/operator must sample and analyze the groundwater for the expanded parameters listed in the Water Quality Analysis Tables. A minimum of one sample from each monitoring well (upgradient and downgradient) must be collected and analyzed during this sampling. If any constituents are detected in the downgradient wells as a result of the expanded parameter analysis, a minimum of two independent samples from each well (upgradient and downgradient) must be collected within 30 days of obtaining the results of the expanded parameter analysis and analyzed for the detected constituents. These samples must be collected within two weeks of each other and then compared to the existing groundwater quality values established pursuant to subparagraph (c)(5)(i) of this section. If an increase in the existing water quality values in the upgradient wells is indicated by this comparison, the existing water quality values for these parameters shall be revised to be the arithmetic mean of the results of each parameter for which analyses were performed in the upgradient wells within each hydrogeologic flow regime. The department may delete any of the expanded parameters if it can be shown that the removed parameters are not reasonably expected to be in, or derived from, the waste contained in the landfill based on the leachate sampling being performed pursuant to paragraph (c)(3) of this section.
(b) After obtaining the results from the initial or subsequent sampling required in clause (a) of this subparagraph, the facility owner/operator must:
(1) within 14 days, notify the department to identify the expanded parameters that have been detected;
(2) within 90 days, and on a quarterly basis thereafter, resample all wells, conduct analyses for all baseline parameters, and for those expanded parameters that are detected in response to clause (a) of this subparagraph. In addition, the facility owner/operator shall sample and conduct analyses annually on all wells for the expanded parameters. At least one sample from each upgradient and downgradient well must be collected and analyzed during these sampling events. The department may reduce the requirements of this subclause based on site specific conditions; and
(3) establish groundwater protection standards for all parameters detected pursuant to clause (a) of this subparagraph. The groundwater protection standards must be established in accordance with clause (f) of this subparagraph.
(c) If the concentrations of any of the expanded parameters are shown to be at or below existing water quality values for two consecutive sampling events, the owner/operator must notify the department of this finding and, if approved by the department, may remove that parameter from the contingency water quality monitoring program. If the concentrations of all the expanded parameters are shown to be at or below existing water quality values for two consecutive sampling events, the owner/operator must notify the department and, if approved by the department, may return to operational water quality monitoring.
(d) If the concentrations of any expanded parameters are above existing water quality values, but all concentrations are below the groundwater protection standard established under clause (f) of this subparagraph, the owner/operator must continue contingency monitoring in accordance with this subparagraph.
(e) If one or more expanded parameters are detected at significant levels above the groundwater protection standard established under clause (f) of this subparagraph in any sampling event, the facility owner/operator must, within 14 days of this finding, notify the department to identify the expanded parameters that have exceeded the groundwater protection standard, and notify all appropriate local government officials identified in the Contingency Plan, required pursuant to section 360-2.10 of this Subpart, that the notice has been sent to the department. The owner/operator must also:
(1) characterize the nature and extent of the release by installing additional monitoring wells as necessary;
(2) install at least one additional monitoring well at the facility boundary in the direction of contaminant migration, and sample this well in accordance with subparagraph (c)(5)(i) of this section;
(3) notify all persons who own the land or reside on the land that is directly over any part of the plume of contamination if contaminants have migrated off-site as indicated by sampling of wells in accordance with subclause (1) of this clause; and
(4) initiate an assessment of corrective measures as required by section 360-2.20 of this Subpart within 90 days; or
(5) demonstrate that a source other than the landfill caused the contamination, or that the significant increase resulted from error in sampling, analysis, or natural variation in groundwater quality. This report must be submitted for approval by the department. If a successful demonstration is made, the facility owner/operator must continue monitoring in accordance with the contingency water quality monitoring program pursuant to subparagraph (c)(3)(iii) of this section, and may return to operational monitoring if the expanded parameters are at or below existing water quality as specified in subparagraph (c)(5)(i) of this section. Unless and until a successful demonstration is made, the owner/operator must comply with this clause, including initiating an assessment of corrective measures.
(f) The owner/operator must establish a groundwater protection standard for each expanded parameter detected in the groundwater. The groundwater protection standard shall be:
(1) for parameters for which a maximum contaminant level (MCL) has been established in section 1412 of the Safe Drinking Water Act under 40 CFR part 141 (see section 360-1.3 of this Part) or for which standard has been established pursuant to Part 701, 702, or 703 of this Title, whichever is more stringent when the parameters are the same, the MCL or standard for that constituent;
(2) for parameters for which MCLs or standards have not been established, the existing water quality concentration for the parameter established from wells in accordance with subparagraph (c)(5)(i) of this section; or
(3) for parameters for which the existing water quality level is higher than the MCL or standard identified under subclause (1) of this clause, the existing water quality concentration.
(iv) Reporting of data. Unless more rapid reporting is required to address an imminent environmental or public health concern, the owner or operator of the facility must report all water quality monitoring results to the department within 90 days of the conclusion of the sample collection. The report must include:
(a) A table showing the sample collection date, the analytical results (including all peaks even if below method detection limits [MDL]), designation of upgradient wells andlocation number for each environmental monitoring point sampled, applicable water quality standards, and groundwater protection standards if established, MDL's, and Chemical Abstracts Service (CAS) numbers on all parameters.
(b) In addition, tables or graphical representations comparing current water quality with existing water quality and with upgradient water quality must be presented. These comparisons may include Piper diagrams, Stiff diagrams, tables, or other analyses.
(c) A summary of the contraventions of State water quality standards, significant increases in concentrations above existing water quality, any exceedances of groundwater protection standards, and discussion of results, and any proposed modifications to the sampling and analysis schedule necessary to meet the requirements of subparagraphs (i) through (iii) of this paragraph.
(d) All AQA/AQC documentation must be submitted to the department in a form acceptable to the department.
(e) The annual report must contain a summary of the water quality information presented in clauses (b) and (c) of this subparagraph with special note of any changes in water quality which have occurred throughout the year.
(f) The data quality assessment report required pursuant to paragraph (d)(5) of this section.
(d) Site analytical plan. The site analytical plan must describe the method of sample collection and preservation, chain of custody documentation, analyses to be performed, analytical methods, data quality objectives, procedures for corrective actions, and procedures for data reduction, validation and reporting. The site analytical plan will pertain to existing water quality monitoring programs, operational water quality monitoring programs, and a contingency water quality monitoring program which specifies trigger mechanisms for its initiation. Unless otherwise approved by the department, the site analytical plan must comply with the following:
(1) Data quality objectives.
(i) The data quality objectives for the data generation activity must be established prior to the initiation of any sampling.
(ii) The data quality objectives shall define the goals of each phase of the water quality monitoring program, including, but not limited to, the following:
(a) reasons for the analytical program;
(b) identification of any regulatory programs and standards applicable to the analytical program; and
(c) minimum detection limits for each of the parameters listed in the Water Quality Analysis Tables.
(iii) The data quality objectives shall be the basis for the development of all other portions of the site analytical plan.
(2) Analytic quality assurance (AQA)/analytic quality control (AQC).
(i) The site analytical plan must include a discussion of the AQA/AQC for the sampling program associated with the facility and shall be sufficient to ensure that the data generated by the sampling and analysis activities are of a quality commensurate with their intended use and the requirements of the department. The discussion shall detail the AQA/AQC goals and protocols for each type of environmental monitoring to be performed at the facility. Elements must include a discussion of the quality objectives of the project, identification of the qualifications of those persons who will be performing the work and their responsibilities and authorities, enumeration of AQC procedures to be followed, and reference to the specific standard operating procedures that will be followed for all aspects of the environmental monitoring program.
(3) Field sampling procedures.
(i) All field sampling procedures shall be described in detail in the site analytical plan. All field quality control procedures shall be described including types and frequency of field quality control samples to be collected such as field blanks, trip blanks, field duplicates, reference materials and material blanks.
(ii) All samples must be collected and stored in the order of the parameter's volatilization sensitivity using methods, consistently applied, which ensure sample integrity.
(iii) All sampling equipment must be constructed of inert materials designed to obtain samples with minimal agitation and contact with the atmosphere; be cleaned and protected during transport to avoid contamination; and checked before use. Dedicated equipment must be constructed of appropriate inert materials and must be appropriate for the types of sampling to be performed.
(iv) Samples must be properly preserved and delivered to the laboratory with proper chain of custody within all appropriate holding times for the parameters to be analyzed.
(v) The sampling procedures and frequencies must be protective of human health and the environment.
(vi) Monitoring well sampling techniques. Monitoring well sampling techniques must be consistently performed each time a well is sampled, and must comply with the following:
(a) In areas where the presence of explosive or organic vapors is suspected, ambient air in the well must be checked for their presence before the well is evacuated.
(b) For wells with documented contamination, where contamination by non- aqueous phase liquids may be present, standing water in the well must be checked for immiscible layers or other contaminants that are lighter or heavier than water (floaters or sinkers). If present, floaters or sinkers must be sampled and analyzed separately by a method described in the site analytical plan.
(c) Evacuation of the well must replace stagnant water in the well and the sand pack with fresh water representative of the formation. Evacuation methods, including pumping rate, depth of pump intake, and method of determining sufficiency of evacuation must be consistently applied each time the well is sampled. Evacuation methods must create the least possible turbidity in the well and must not lower the water in the well below the top of the sand pack whenever feasible. Evacuated water must be properly managed.
(d) After evacuation of the well, volatile organic samples must be collected.
(e) analysis must be performed after volatile organic samples have been collected, either within the borehole using a probe or from the next sample collected. All field test equipment must be calibrated at the beginning of each sampling day and checked and recalibrated according to the manufacturer's specifications. Calibration data must be reported with the analytical results.
(f) Groundwater samples shall not be filtered, unless otherwise approved by the department. If, due to site-specific conditions, sample turbidity cannot be reduced to 50 nephelometric turbidity units (NTUs) or less by good sampling technique or well redevelopment, the department may approve collection of both filtered and unfiltered samples for analyses of the inorganic parameters. All other analyses required will be on the unfiltered samples.
(vii) Surface water and sediment sampling techniques. Surface water and sediment sampling methods must be consistently applied to all samples, and must comply with the following:
(a) Surface water samples collected from shallow water should not include bottom sediment. In shallow moving water, downstream samples must be collected first to avoid disturbances from the bottom sediments.
(b) Each water body over three feet deep that is sampled must be checked for stratification, and each stratum must be checked for contamination using field parameters. Each stratum showing evidence of contamination must be separately analyzed. If no stratum shows such evidence, a composite sample having equal parts of water from each stratum must be analyzed.
(c) Sediment samples must be taken at each location from which surface water samples are taken, and should consist of the upper five centimeters of sediment.
(viii) Water supply well sampling techniques. Sampling methods must be consistently applied each time a well is sampled and must comply with the following:
(a) Samples should be collected directly from the well so as to yield water representative of the formations supplying the well. If this is not possible, samples must be collected as near to the well as possible and before the water is softened, filtered, or heated.
(b) If possible, samples must be collected before the water enters the pressure tank, otherwise the water must run long enough to flush water stored in the tank and pipes.
(c) Before sampling, water must be evacuated from the well to ensure a fresh sample of aquifer water.
(d) If samples are collected from a tap, aerators, filters, or other devices must be removed before sampling.
(ix) Corrective action. Standard operating procedures must be established which describe the procedures used to identify and correct deficiencies in the sample collection process. The standard operating procedure shall specify that each corrective action must be documented in the sampling report submitted to the department, with a description of the deficiency, the corrective action taken, and the persons responsible for implementing the corrective action. Any alterations to the field sampling procedures shall be included as an amendment to the site analytical plan.
(4) Laboratory procedures.
(i) Laboratory analyses must be performed by a laboratory currently certified under the appropriate approval categories by the New York State Department of Health's Environmental Laboratory Approval Program (ELAP).
(ii) The site analytical plan should contain the standard operating procedures of all laboratory activities related to the environmental monitoring plan. Any revisions to these standard operating procedures must be documented. Standard operating procedures should be available for the following, at a minimum:
(a) receipt, storage and handling of samples;
(b) sample scheduling to ensure that holding time requirements are met;
(c) reagent/standard preparation;
(d) general laboratory techniques such as glassware cleaning procedures, operation of analytical balances, pipetting techniques and use of volumetric glassware;
(e) description of how analytical methods are actually to be performed including precise reference to the analytical method used; and not a simple reference to standard methods; and
(f) standard operating procedures for equipment calibration and maintenance to ensure that laboratory equipment and instrumentation are in working order, including, but not limited to procedures and schedules for calibration and maintenance in accordance with manufacturers' specifications; and
(g) for a corrective action, standard operating procedures must be established for identifying and correcting deficiencies in the laboratory procedures. The standard operating procedure shall specify that each corrective action must be documented in the sampling event report submitted to the department with a description of the deficiency, the corrective action taken, and the person responsible for implementing the corrective action. Any alterations to the laboratory procedures shall be included as an amendment to the site analytical plan.
(5) Data quality assessment. At the conclusion of each sampling event and analysis of the samples collected, data quality assessment shall occur. A data quality assessment report must be submitted with the results from each sampling event. Data quality assessment shall occur in two phases.
(i) Data validation.
(a) For those sampling events for which only routine parameters are analyzed, the data validation shall be performed by the laboratory that performed the sample analyses.
(b) For those sampling events for which baseline or expanded parameters are analyzed, the data validation shall be performed by a person other than the laboratory that performed the analyses and that is acceptable to the department.
(c) The data validation shall be performed on all analytical data for the facility at a rate acceptable to the department, but not less than five percent of the data generated, and shall consist, at a minimum, of the following:
(1) field records and analytical data are reviewed to determine whether the data are accurate and defensible. All AQA/AQC information shall be reviewed along with any corrective actions taken during that sampling event; and
(2) all data summaries shall be clearly marked to identify any data that are not representative of environmental conditions at the site, or that were not generated in accordance with the site analytical plan.
(ii) Data usability analysis.
(a) The data usability analysis shall be performed on all analytical data for the facility and shall consist of the following:
(1) an assessment to determine if the data quality objectives were met;
(2) for consistency, comparison of the analytical data with the results from previous sampling events;
(3) evaluation of field duplicate results to indicate the samples are representative;
(4) comparison of the results of all field blanks, trip blanks, equipment rinsate blanks, and method blanks with full data sets to provide information concerning contaminants that may have been introduced during sampling, shipping, or analyzing;
(5) evaluation of matrix effects to assess the performance of the analytical method with respect to the sample matrix, and determine whether the data have been biased high or low due to matrix effects;
(6) integration of the field and laboratory data with geological, hydrogeological, and meteorological data to provide information about the extent of contamination, if it occurs; and
(7) comparison of precision, accuracy, representativeness, comparability, completeness, and defensibility of the data generated with that required to meet the data quality objectives established in the site analytical plan.
(6) The following Water Quality Analysis Tables in this section list the routine, baseline, and expanded parameters for analysis of all monitoring samples.
WATER QUALITY ANALYSIS TABLES
ROUTINE PARAMETERS1
| Common Name2 | CAS RN3 | Suggested Methods | PQL4 (µg/l) |
|---|---|---|---|
| Field Parameters: | |||
| Static water level(in wells and sumps) | |||
| Specific Conductance | 9050 | ||
| Temperature | |||
| Floaters or Sinkers5 | |||
| Temperature | |||
| pH | 9040 | ||
| Eh | 9041 | ||
| Dissolved Oxygen6 | |||
| Field Observations7 | |||
| Turbidity | 180.1 | ||
| Leachate Indicators: | |||
| Total Kjeldahl Nitrogen ...... | 351.1 351.2 351.3 |
60 | |
| Ammonia........ | 7664-41-7 | 351.4 350.1 350.2 |
200 60 |
| Nitrate.......... | 350.3 | 100 | |
| Chemical Oxygen Demand........ | 9200 410.1 410.2 410.3 410.4 |
50000 50000 5000 80000 |
|
| Biochemical Oxygen Demand (BOD5 )..... | 405.1 | 2000 | |
| Total Organic Carbon..... | |||
| Total Dissolved Solids ........... | 9060 | ||
| Sulfate...... | 160.1 9035 |
40000 | |
| Alkalinity...... | 9036 9038 |
||
| Phenols..... | 310.1 | 20000 | |
| Chloride..... | 108-95-2 |
310.2 8040 9250 |
6000 |
| Bromide...... | 9251 | ||
| Total hardness as CaCO3 | 9252 320.1 130.1 130.2 |
2000 20000 30000 |
|
| Inorganic Parameters: | |||
| Cadmium..... | (Total) | 3010 7130 |
40 50 |
| Calcium..... | 7131 | 1 | |
| Iron......... | (Total) (Total) |
7140 7380 |
40 100 |
| Lead............. | (Total) | 7381 6010 7420 |
4 400 1000 |
| Magnesium...... | 7421 | 10 | |
| Manganese........ | (Total) (Total) |
7450 7460 |
4 40 |
| Potassium........ | 7461 | 0.8 | |
| Sodium......... | (Total) (Total) |
7610 7770 |
40 8 |
The department may modify this list as necessary.
Notes
1This list contains parameters for which possible analytical procedures are provided in EPA Report SW-846 Test Methods for Evaluating Solid Waste, third edition, November 1986, as revised December 1987, and Methods for Chemical Analysis of Water and Wastes, USEPA-600/4-79-020, March, 1979. The regulatory requirements pertain only to the list of parameters; the right hand columns (Methods and PQL) are given for informational purposes only. See also footnote 4.
2Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.
3Chemical Abstracts Service Registry Number. Where "Total" is entered, all species in the groundwater that contain this element are included.
4Practical Quantitation Limits (PQLs) are the lowest concentrations of analytes in groundwaters that can be reliably determined within specified limits of precision and accuracy by the indicated methods under routine laboratory operating conditions. The PQLs listed are generally stated to one significant figure. PQLs are based on 5 ml samples for volatile organics and 1 L samples for semivolatile organics. CAUTION: The PQL values in many cases are based only on a general estimate for the method and not on a determination for individual compounds; PQLs are not a part of the regulation.
5Any floaters or sinkers found must be analyzed separately for baseline parameters.
6Surface water only.
7Any unusual conditions (colors, odors, surface sheens, etc.) noticed during well development, purging, or sampling must be reported.
BASELINE PARAMETERS1
| Common Name2 | CAS RN3 | Suggested Methods | PQL4 (µg/l) |
|---|---|---|---|
| Field Parameters: | |||
| Static water level........ (in wells and sumps) |
|||
| Specific Conductance...... | 9050 | ||
| Temperature............. | |||
| Floaters or Sinkers5...... | |||
| pH........................ | 9040 9041 |
||
| Eh........................ | |||
| Dissolved Oxygen6......... | |||
| Field Observations7....... | 180.1 | ||
| Turbidity................. | |||
| Leachate Indicators: | |||
| Total Kjeldahl Nitrogen... | 351.1 351.2 351.3 |
60 | |
| Ammonia................... | 7664-41-7 | 351.4 350.1 350.2 |
200 30 |
| Nitrate................... | 350.3 | 100 | |
| Chemical Oxygen Demand.... | 9200 410.1 410.2 410.3 |
50000 50000 50000 |
|
| Biochemical Oxygen Demand (BOD5)................. | 410.4 405.1 |
80000 2000 |
|
| Total Organic Carbon...... | |||
| Total Dissolved Solids.... | 9060 | ||
| Sulfate................... | 160.1 9035 |
40000 | |
| Alkalinity................ | 9036 9038 |
||
| Phenols................... | 310.1 | 20000 | |
| Chloride.................. | 310.2 9250 |
6000 | |
| Bromide................... | 9251 | ||
| Total hardness as CaCO3 ... | 9252 | ||
| Color..................... | 320.1 130.1 130.2 110.1 110.2 110.3 |
2000 20000 30000 80 |
|
| Boron........... | 7440-42-8 | ||
| Inorganic Parameters: | |||
| Aluminum................. | |||
| Antimony................. | (total) (total) |
7020 6010 7040 |
10 300 2000 |
| Arsenic.................. | (total) | 7041 6010 7060 |
30 500 10 |
| Barium................... | (total) | 7061 6010 |
20 20 |
| Beryllium................ | (total) | 7080 6010 7090 |
1000 3 50 |
| Cadmium.................. | (total) | 7091 6010 7130 |
2 40 50 |
| Calcium.................. | 7131 | 1 | |
| Chromium................. | (total) (total) |
7140 6010 7190 |
40 70 500 |
| Chromium(Hexavalent)*.... | 18540-29-9 | 7191 7195 7196 |
10 600 |
| Cobalt.................. | (total) | 7197 7198 6010 |
30 70 |
| Copper................... | (total) | 7200 7201 6010 |
500 10 60 |
| Cyanide.................. | 7210 | 200 | |
| Iron..................... | (total) | 7211 9010 |
10 200 |
| Lead..................... | (total) (total) |
7380 7381 6010 |
100 4 400 |
| Magnesium................ | 7420 | 1000 | |
| Manganese................ | (total) | 7421 7450 |
10 4 |
| Mercury.................. | (total) | 7460 | 40 |
| Nickel................... | (total) | 7461 7470 |
0.8 2 |
| Potassium................ | (total) (total) |
6010 7520 7610 |
150 400 40 |
| Selenium.................. | (total) | 6010 7740 |
750 20 |
| Silver.................... | (total) | 7741 6010 |
20 70 |
| Sodium.................... | 7760 | 100 | |
| Thallium.................. | (total) (total) |
7761 7770 6010 |
10 8 400 |
| Vanadium.................. | (total) | 7840 7841 6010 |
1000 10 80 |
| Zinc...................... | (total) | 7910 7911 6010 7950 7951 |
2000 40 20 50 0.5 |
| Organic Parameters: | |||
| Acetone................... | 67-64-1 | 8260 | 100 |
| Acrylonitrile............. | 107-13-1 | 8030 8260 |
5 200 |
| Benzene................... | 71-43-2 | 8020 8021 8260 |
2 0.1 5 |
| Bromochloromethane........ | 74-97-5 | 8021 8260 |
0.1 5 |
| Bromodichloromethane...... | 75-27-4 | 8010 8021 8260 |
1 0.2 5 |
| Bromoform; Tribromomethane | 75-25-2 | 8010 8021 8260 |
2 15 5 |
| Carbon disulfide.......... | 75-15-0 | 8260 | 100 |
| Carbon tetrachloride...... | 56-23-5 | 8010 8021 8260 |
1 0.1 10 |
| Chlorobenzene............. | 108-90-7 | 8010 8020 8021 8260 |
2 2 0.1 5 |
| Chloroethane; Ethyl chloride......... |
75-00-3 | 8010 8021 |
5 1 |
| Chloroform; Trichloromethane........ | 67-66-3 | 8010 8021 |
0.5 0.2 |
| Dibromochloromethane; Chlorodibromomethane.... | 124-48-1 | 8260 8010 8021 |
5 1 0.3 |
| 1,2-Dibromo-3-chloropro-pane; DBCP.............. | 96-12-8 | 8260 8011 8021 |
5 0.1 30 |
| 1,2-Dibromoethane; Ethyl-ene dibromide; EDB...... | 106-96-4 | 8260 8011 8021 |
25 0.1 10 |
| o-Dichlorobenzene; 1,2-Dichlorobenzene..... |
95-50-1 | 8026 8010 8020 8021 8120 8260 |
5 2 5 0.5 10 5 |
| p-Dichlorobenzene; 1,4-Dichlorobenzene..... |
106-46- | 8270 8010 8020 8021 8120 8260 |
10 2 5 0.1 15 5 |
| trans-1,4-Dichloro-2-bu- tene.................... | 8270 | 10 |
|
| 1,1-Dichloroethane; Ethylidene chloride..... |
110-57-6 75-34-3 |
8260 8010 8021 |
100 1 0.5 |
| 1,2-Dichloroethane; Ethylene dichloride..... | 107-06-2 | 8260 8010 8021 |
8 0.5 0.3 |
| 1,1-Dichloroethylene; | 8260 | 5 | |
| 1,1-Dichloroethene; | 8010 | 1 | |
| Vinylidene chloride..... | 75-35-4 | 8021 | 0.5 |
| cis-1,2-Dichloroethylene; | 8260 | 5 | |
| cis-1,2-Dichloroethene.. | 8021 | 0.2 | |
| trans-1,2-Dichloroethyl-ene; | 156-59-2 | 8260 | 5 |
| trans-1,2-Dichloro- ethene....... |
156-60-5 | 8010 8021 |
1 0.5 |
| 1,2-Dichloropropane; | 8260 | 5 | |
| Pro-pylene dichloride....... | 78-87-5 | 8010 8021 |
0.5 0.05 |
| cis-1,3-Dichloropropene... | 8260 8010 |
5 20 |
|
| trans-1,3-Dichloropropene. | 10061-01-5 10061-02-6 |
8260 8010 8260 |
10 5 10 |
| Ethylbenzene.............. | 100-41-4 | 8020 8221 8260 |
2 0.05 5 |
| 2-Hexanone; Methyl butyl ketone....... | 591-78-6 | 8260 | 50 |
| Methyl bromide; Bromo- methane........ | 74-83-9 | 8010 8021 |
20 10 |
| Methyl chloride; Chloro- methane....... | 74-87-3 | 8010 8021 |
1 0.3 |
| Methylene bromide; Dibro- momethane...... | 74-95-3 | 8010 8021 |
15 20 |
| Methylene chloride; Dichloromethane.... | 75-09-02 | 8260 8010 8021 |
5 0.2 10 |
| Methyl ethyl ketone; MEK; 2-Butanone.... |
78-93-3 | 8260 8010 |
100 40 |
| 4-Methyl-2-pentanone; Methyl isobutyl ketone.. | 108-10-1 | 8260 8015 |
10 5 |
| Styrene........ | 100-42-5 | 8260 8020 8021 |
100 1 0.1 |
| 1,1,1,2-Tetrachloroethane. | 630-20-6 | 8260 8010 8021 |
10 5 5 |
| 1,1,2,2-Tetrachloroethane.... | 79-34-5 | 8260 8010 8021 |
0.5 0.1 0.05 |
| Tetrachloroethylene; Tet- rachloroethene; Per- chloroethylene.......... | 127-18-4 | 8260 8010 8021 |
5 0.5 0.5 |
| Toluene................... | 108-88-3 | 8260 8020 8021 |
5 2 0.1 |
| 1,1,1-Trichloroethane; Methylchloroform........ | 71-55-6 | 8260 8010 8021 |
5 0.3 0.3 |
| 1,1,2-Trichloroethane..... | 79-00-5 | 8260 8010 |
5 0.2 |
| Trichloroethylene; Tri- chloroethene............ | 79-01-6 | 8260 8010 8021 |
5 1 0.2 |
| Trichlorofluoromethane; CFC-11.................. |
75-69-4 | 8260 8010 8021 8260 |
5 10 0.3 5 |
| 1,2,3-Trichloropropane.... | 96-18-4 | 8010 8021 8260 |
10 5 15 |
| Vinyl acetate............ | 108-05-4 | 8260 | 50 |
| Vinyl chloride; Chloro- ethene.................. | 75-01-4 | 810 8021 8260 |
2 0.4 10 |
| Xylenes................... | 1330-20-7 | 8020 8021 8260 |
5 0.2 5 |
The department may modify this list as necessary.
Notes
1This list contains 47 volatile organics for which possible analytical procedures provided in EPA Report SW-846 Test Methods for Evaluating Solid Waste, third edition, November 1986, as revised December 1987, includes Method 8260; 25 metals for which SW-846 provides either Method 6010 or a method from the 7000 series of methods; and additional parameters for which possible procedures are provided in Methods for Chemical Analysis of Water and Wastes, USEPA-600/4-79-020, March, 1979. The regulatory requirements pertain only to the list of parameters; the right hand columns (Methods and PQL) are given for informational purposes only. See also footnote 4.
2Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.
3Chemical Abstracts Service Registry Number. Where "Total" is entered, all species in the groundwater that contain this element are included.
4Practical Quantitation Limits (PQLs) are the lowest concentrations of analytes in groundwaters that can be reliably determined within specified limits of precision and accuracy by the indicated methods under routine laboratory operating conditions. The PQLs listed are generally stated to one significant figure. PQLs are based on 5 ml samples for volatile organics and 1 L samples for semivolatile organics. CAUTION: The PQL values in many cases are based only on a general estimate for the method and not on a determination for individual compounds; PQLs are not a part of the regulation.
5Any floaters or sinkers found must be analyzed separately for baseline parameters.
6Surface water only.
7Any unusual conditions (colors, odors, surface sheens, etc.) noticed during well development, purging, or sampling must be reported.
*The department may waive the requirement to analyze Hexavalent Chromium
provided that Total and Hexavalent and Trivalent Chromium values do not exceed 0 .05 mg/l.
EXPANDED PARAMETERS1
| Common Name2 | CAS RN3 | Suggested Methods | PQL4 (µg/l) |
|---|---|---|---|
| Field Parameters: | |||
| Static water level........ (in wells and sumps) |
|||
| Specific Conductance...... | 9050 | ||
| Temperature............. | |||
| Floaters or Sinkers5...... | |||
| pH........................ | 9040 9041 |
||
| Eh........................ | |||
| Dissolved Oxygen6......... | |||
| Field Observations7....... | 180.1 | ||
| Turbidity................. | |||
| Leachate Indicators: | |||
| Total Kjeldahl Nitrogen... | 351.1 351.2 351.3 |
60 | |
| Ammonia................... | 7664-41-7 | 351.4 350.1 350.2 |
200 30 |
| Nitrate................... | 350.3 | 100 | |
| Chemical Oxygen Demand.... | 9200 410.1 410.2 410.3 410.4 |
50000 50000 50000 80000 |
|
| Biochemical Oxygen Demand (BOD5)................. | 405.1 | 2000 | |
| Total Organic Carbon...... | |||
| Total Dissolved Solids.... | 9060 | ||
| Sulfate................... | 160.1 9035 |
40000 | |
| Alkalinity................ | 9036 9038 |
||
| Phenols................... | 310.1 | 20000 | |
| Chloride.................. | 108-95-2 | 310.2 8040 9250 |
6000 |
| Bromide................... | 9251 | ||
| Total hardness as CaCO3 ... | 24959-67-9 | 9252 320.1 130.1 130.2 |
2000 20000 30000 |
| Color..................... | 110.1 110.2 110.3 |
80 | |
| Boron........... | 7440-42-8 | ||
| Inorganic Parameters: | |||
| Aluminum......... | (total) | 7020 | 10 |
| Antimony........... | (total) | 6010 7040 7041 |
300 2000 30 |
| Arsenic............ | (total) | 6010 7060 7061 |
500 10 20 |
| Barium................... | (total) | 6010 | 20 |
| Beryllium................ | (total) | 7080 6010 7090 |
1000 3 50 |
| Cadmium.................. | (total) | 7091 6010 7130 |
2 40 50 |
| Calcium.................. | 7131 | 1 | |
| Chromium................. | (total) (total) |
7140 6010 7190 |
40 70 500 |
| Chromium(Hexavalent)*.... | 18540-29-9 | 7191 7195 7196 7197 |
10 600 30 |
| Cobalt.................. | (total) | 7198 6010 7200 |
70 500 |
| Copper............. | (total) | 7201 6010 |
10 60 |
| Cyanide.................. | 7211 | 10 | |
| Iron............... | (total) (total) |
9010 7380 |
200 100 |
| Lead............... | (total) | 7381 6010 7420 |
4 400 1000 |
| Magnesium................ | 7421 | 10 | |
| Manganese.......... | (total) (total) |
7450 7460 |
4 40 |
| Mercury.................. | (total) | 7461 7470 |
0.8 2 |
| Nickel................... | (total) | 6010 7520 |
150 400 |
| Potassium.......... | (total) | 7610 | 40 |
| Selenium........... | (total) | 6010 7740 7741 |
750 20 20 |
| Silver............ | (total) | 6010 7760 7761 |
70 100 10 |
| Sodium............ | (total) | 7770 | 8 |
| Thallium........... | (total) | 6010 7840 7841 |
400 1000 10 |
| Tin...... | (total) | 6010 | 40 |
| Vanadium........... | (total) | 6010 7910 7911 |
80 2000 40 |
| Zinc............... | (total) | 6010 7950 7951 |
20 50 0.5 |
| Organic Parameters: | |||
| Acenaphthene.... | 83-32-9 | 8100 8270 |
200 10 |
| Acemaphthylene | 208-96-8 | 8100 8270 |
200 10 |
| Acetone................... | 67-64-1 | 8260 | 100 |
| Acetonitrile; Methyl cyanide............ | 75-05-8 | 8015 | 100 |
| Acetophenone....... | 98-86-2 | 8270 | 10 |
| 2-Acetylaminofluorene; 2-AAF....... | 53-96-3 | 8270 | 20 |
| Acrolein........ | 107-02-8 | 8030 8260 |
5 100 |
| Acrylonitrile............. | 107-13-1 | 8030 8260 |
5 200 |
| Aldrin...... | 309-00-2 | 8080 8270 |
10 5 |
| Ally chloride..... | 107-05-1 | 8010 8260 |
5 10 |
| 4- aminobiphenyl... | 92-67-1 | 8270 | 20 |
| Anthracene..... | 120-12-7 | 8100 8270 |
200 10 |
| Benzene................... | 71-43-2 | 8020 8021 8260 |
2 0.1 5 |
| Benzo[a]anthracene; Benzanthracene..... | 56-55-3 | 8100 8270 |
200 10 |
| Benzo[b]fluoranthene.. | 205-99-2 | 8100 8270 |
200 10 |
| Benzo[k]fluoranthene.. | 207-08-9 | 8100 8270 |
200 10 |
| Benzo[ghi]perylene.. | 191-24-2 | 8100 8270 |
200 10 |
| Benzo[a]pyrene... | 50-32-8 | 8100 8270 |
200 10 |
| Benzyl alcohol.. | 100-51-6 | 8270 | 20 |
| alpha-BHC.......... | 319-84-6 | 8080 8270 |
0.05 10 |
| beta-BHC.... | 319-85-7 | 8080 8270 |
0.05 10 |
| delta-BHC...... | 319--86-8 | 8080 8270 |
0.1 20 |
| gamma-BHC; Lindane... | 58-89-9 | 8080 8270 |
0.05 20 |
| Bis(2-chloroethoxy)methane | 111-91-1 | 8110 8270 |
5 10 |
| Bis(2-chloroethyl) ether; Dichloroethyl ether... | 111-44-4 | 8110 8270 |
3 10 |
| Bis-(2-chloro-1-methyl-ethyl) ether; 2,21-Di- chlorodiisopropyl ether |
108-60-1 | 8110 8270 |
10 10 |
| DCIP, See note 9..... | |||
| Bis(2-ethylhexyl)phthalate Bromochloromethane; Chlorobromomethane.... | 117-81-7 74-97-5 |
8060 8021 8260 |
20 0.1 5 |
| Bromodichloromethane; Dibromochloromethane... | 75-27-4 | 8010 8021 |
1 0.2 |
| Bromoform; Tribromomethane | 75-25-2 | 8260 8010 8021 |
5 2 15 |
| 4-Bromophenyl phenyl ether | 101-55-3 | 8260 8110 |
5 25 |
| Butyl benzyl phthalate; Benzyl butyl phthalate.. | 85-68-7 | 8270 8060 |
10 5 |
| Carbon disulfide.......... | 8270 | 10 | |
| Carbon tetrachloride...... | 75-15-0 56-23-5 |
8260 8010 8021 8260 |
100 1 0.1 10 |
| Chlordane................. | See Note 10 | 8080 8270 |
0.1 50 |
| p-Chloroaniline.......... | 106-47-8 | 8270 | 20 |
| Chlorobenzene............. | 108-90-7 | 8010 8020 8021 8260 |
2 2 0.1 5 |
| Chlorobenzilate......... | 510-15-6 | 8270 | 10 |
| p-Chloro-m-cresol; 4-Chloro-3-methylphenol... | 59-50-7 | 8040 8270 |
5 20 |
| Chloroethane; Ethyl chloride......... | 75-00-3 | 8010 8021 8260 |
5 1 10 |
| Chloroform; Trichloromethane..... | 67-66-3 | 8010 8021 8260 |
0.5 0.2 5 |
| 2-Chloronaphthalene... | 91-58-7 | 8120 8270 |
10 10 |
| 2-Chlorophenol............ | 95-57-8 | 8040 8270 |
5 10 |
| 4-Chlorophenyl phenyl ether....... | 7005-72-3 | 8110 8270 |
40 10 |
| Chloroprene............... | 126-99-8 | 8010 8260 |
50 20 |
| Chrysene.................. | 218-01-9 | 8100 8270 |
200 10 |
| m-Cresol; 3-methylphenol.. | 108-39-4 | 8270 | 10 |
| o-Cresol; 2-methylphenol.. | 95-48-7 | 8270 | 10 |
| p-Cresol; 4-methylphenol.. | 106-44-5 | 8270 | 10 |
| 2,4-D; 2,4-Dichlorophen- oxyacetic acid.......... | 94-75-7 | 8150 | 10 |
| 4,41-DDD.......... | 72-54-8 | 8080 | 0.1 |
| 4,41-DDE.......... | 8270 | 10 | |
| 4,41-DDT.......... | 72-55-9 | 8080 | 0.05 |
| Diallate.................. | 8270 | 10 | |
| Dibenz[a,h]anthracene..... | 50-29-3 | 8080 8270 |
0.1 10 |
| Dibenzofuran.............. | 2303-16-4 | 8270 | 10 |
| Dibromochloromethane; Chlorodibromomethane.... | 53-70-3 132-64-9 124-48-1 |
8100 8270 8270 8010 8021 8260 |
200 10 10 1 0.3 5 |
| 1,2-Dibromo-3-chloro- propane; DBCP...... | 96-12-8 | 8011 8021 8260 |
0.1 30 25 |
| 1,2-Dibromoethane; Ethylene dibromide; EDB.... | 106-93-4 | 8011 8021 8260 |
0.1 10 5 |
| Di-n-butyl phthalate...... | 84-74-2 | 8060 | 5 |
| o-Dichlorobenzene; 1,2-Dichlorobenzene..... | 95-50-1 | 8270 8010 8020 8021 8120 8260 |
10 2 5 0.5 10 5 |
| m-Dichlorobenzene; 1,3-Dichlorobenzene..... | 541-73-1 | 8270 8010 8020 8021 8120 8260 |
10 5 5 0.2 10 5 |
| p-Dichlorobenzene; 1,4-dichlorobenzene.... | 106-46-7 | 8270 8010 8020 8021 8120 8260 |
10 2 5 0.1 15 5 |
| 3,31-Dichlorobenzidine.... | 8270 | 10 | |
| trans-1,4-Dichloro- 2-butene...... | 91-94-1 | 8270 | 10 |
| Dichlorodifluoromethane; CFC 12..... | 110-57-6 75-71-8 |
8260 8021 |
100 0.5 |
| 1,1-Dichloroethane; Ethyldidene chloride.... | 75-34-3 | 8260 8010 |
5 1 |
| 1,2-Dichloroethane; Ethylene dichloride.... | 107-06 | 8021 8260 8010 |
0.5 5 .05 |
| 1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene chloride..... |
75-35-4 | 8021 8260 8010 |
0.3 5 1 |
| cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene.. | 8021 8260 |
0.5 5 |
|
| trans-1,2-Dichloroethylene | 156-59-2 | 8021 8260 |
0.2 5 |
| trans-1,2-Dichloroethene | 156-60-5 | 8260 8010 |
5 1 |
| 2,4-Dichlorophenol...... | 120-83-2 | 8021 8260 8040 8270 |
0.5 5 5 10 |
| 2,6-Dichlorophenol...... | 87-65-0 | 8270 | 10 |
| 1,2-Dichloropropane; Propylene dichloride.... | 78-87-5 | 8010 8021 8260 |
0.5 0.05 5 |
| 1,3-Dichloropropane; Trimethylene dichloride. | 142-28-9 | 8021 8260 |
0.3 5 |
| 2,2-Dichloropropane; Isopropylidene chloride. | 594-20-7 | 8021 8260 |
0.5 15 |
| 1,1-Dichloropropene... | 563-58-6 | 8021 | 0.2 |
| cis-1,3-Dichloropropene.. | 10061-01-5 | 8260 8010 |
5 20 |
| trans-1,3-Dichloropropene | 10061-02-6 | 8260 8010 |
10 5 |
| Dieldrin............ | 60-57-1 | 8260 8080 |
10 0.05 |
| Diethyl phthalate.... | 84-66-2 | 8270 8060 |
10 5 |
| 0,0-Diethyl 0-2-pyrazinyl phosphorothioate; Thionazin............... |
297-97-2 | 8270 8141 8270 |
10 5 20 |
| Dimethoate........ | 60-51-5 | 8141 | 3 |
| p-(Dimethylamino)azo- benzene........ | 8270 | 20 |
|
| 7,12-Dimethylbenz[a]- anthracene......... | 60-11-7 | 8270 | 10 |
| 3,31-Dimethylbenzidine.... | 57-97-6 | 8270 | 10 |
| 2,4-Dimethylphenol; m-Xylenol.......... | 199-93-7 105-67-9 |
8270 8040 |
10 5 |
| Dimethyl phthalate... | 8270 | 10 | |
| m-Dinitrobenzene... | 131-11-3 | 8060 | 5 |
| 4,6-Dinitro-o-cresol 4,6- Dinitro-2-methylphenol.. | 99-65-0 | 8270 8270 |
10 20 |
| 2,4-Dinitrophenol.... | 534-52-1 | 8040 8270 |
150 50 |
| 2,4-Dinitrotoluene....... | 51-28-5 | 8040 8270 |
150 50 |
| 2,6-Dinitrotoluene.... | 121-14-2 | 8090 8270 |
0.2 10 |
| Dinoseb; DNBP; 2-sec- Butyl-4,6-dinitrophenol. | 606-20-2 | 8090 8270 |
0.1 10 |
| Di-n-octyl phthalate... | 88-85-7 117-84-0 |
8150 8270 8060 8270 |
1 20 30 10 |
| 11 Diphenylamine............. | 122-39-4 | 8270 | 10 |
| Disulfoton................ | 298-04-4 | 8140 8141 |
2 0.5 |
| Endosulfan I.............. | 959-98-8 | 8270 8080 |
10 0.1 |
| Endosulfan II............. | 33213-65-9 | 8270 8080 |
20 005 |
| Endosulfan sulfate........ | 8270 | 20 | |
| Endrin.................... | 1031-07-8 | 8080 8270 |
0.5 10 |
| Endrin aldehyde........... | 72-20-8 | 8080 | 0.1 |
| Ethylbenzene.............. | 7421-93-4 | 8270 8080 8270 |
20 0.2 10 |
| Ethyl methacrylate....... | 100-41-4 | 8020 8021 |
2 0.05 |
| Ethyl methanesulfonate.... | 8260 | 5 | |
| Famphur................... | 97-63-2 | 8015 | 5 |
| Fluoranthene.............. | 8260 8270 |
10 10 |
|
| Fluorene.................. | 62-50-0 52-85-7 |
8270 8270 |
20 20 |
| Heptachlor................ | 206-44-0 | 8100 8270 |
200 10 |
| Heptachlor epoxide........ | 86-73-7 | 8100 8270 |
200 10 |
| Hexachlorobenzene......... | 76-44-8 | 8080 8270 |
0.05 10 |
| Hexachlorobutadiene....... | 1024-57-3 118-74-1 |
8080 8270 8120 |
1 10 0.5 |
| Hexachlorocyclopentadiene | 87-68-3 | 8270 8021 8120 |
10 0.5 5 |
| Hexachloroethane.......... | 77-47-7 | 8260 8270 8120 |
10 10 5 |
| Hexachloropropene......... | 8270 | 10 | |
| 2-Hexanone; Methyl butyl ketone.................. | 67-72-1 | 8120 8260 |
0.5 10 |
| Indeno(1,2,3-cd)pyrene... | 1888-71-7 591-78-6 193-39-5 |
8270 8270 8260 8100 8270 |
10 10 50 200 10 |
| Isobutyl alcohol..... | 78-83-1 | 8015 8240 |
50 100 |
| Isodrin.................. | 465-73-6 | 8270 8260 |
20 10 |
| Isophorone.............. | 78-59-1 | 8090 8270 |
60 10 |
| Isosafrole...... | 120-58-1 | 8270 | 10 |
| Kepone........ | 143-50-0 | 8270 | 20 |
| Methacrylonitrile........ | 126-98-7 | 8015 8260 |
5 100 |
| Methapyrilene...... | 91-80-5 | 8270 | 100 |
| Methoxychlor.... | 72-43-5 | 8080 8270 |
2 10 |
| Methyl bromide; Bromomethane... | 74-83-9 | 8010 8021 |
20 10 |
| Methyl chloride; Chloromethane... | 74-87-3 | 8010 8021 |
1 0.3 |
| 3-Methylcholanthrene.... | 56-49-5 | 8270 | 10 |
| Methyl ethyl ketone; MEK; 2-Butanone..... | 78-93-3 | 8015 8260 |
10 100 |
| Methyl iodide;Iodomethane | 74-88-4 | 8010 8260 |
40 10 |
| Methyl methacrylate.. | 80-62-6 | 8015 8260 |
2 30 |
| Methyl methanesulfonate.. | 66-27-3 | 8270 | 10 |
| 2-Methylnaphthalene.... | 91-57-6 | 8270 | 10 |
| Methyl parathion; Parathion methyl.... | 298-00-0 | 8140 8141 8270 |
0.5 1 10 |
| 4-Methyl-2-pentanone; Methyl isobutyl ketone.. | 108-10-1 | 8015 8260 |
5 100 |
| Methylene bromide; Dibromomethane... | 74-95-3 | 8010 8021 8260 |
15 20 10 |
| Methylene chloride; Dichloromethane.... | 75-09-2 | 8010 8021 8260 |
5 0.2 10 |
| Naphthalene.............. | 91-20-3 | 8021 8100 8260 8270 |
0.5 200 5 10 |
| 1,4-Naphthoquinone........ | 130-15-4 | 8270 | 10 |
| 1-Naphthylamine..... | 134-32-7 | 8270 | 10 |
| 2-Naphthylamine....... | 91-59-8 | 8270 | 10 |
| o-Nitroaniline; 2-Nitroaniline...... | 88-74-4 | 8270 | 50 |
| m-Nitroaniline; | |||
| 3-Nitroaniline.... | 99-09-2 | 8270 | 50 |
| p-Nitroaniline; 4-Nitroaniline..... | 100-01-6 | 8270 | 20 |
| Nitrobenzene... | 98-95-3 | 8090 8270 |
40 10 |
| o-Nitrophenol; 2-Nitrophenol... |
88-75-5 | 8040 8270 |
5 10 |
| p-Nitrophenol; 4-Nitrophenol.... |
100-02-7 | 8040 8270 |
10 50 |
| N-Nitrosodi-n-butylamine. | 924-16-3 | 8270 | 10 |
| N-Nitrosodiethylamine.... | 55-18-5 | 8270 | 20 |
| N-Nitrosodimethylamine... | 62-75-9 | 8070 | 2 |
| N-Nitrosodiphenylamine... | 86-30-6 | 8070 | 5 |
| N-Nitrosodipropylamine; N-Nitroso-N-dipropyl- amine; Di-n-propylni- trosamine........... | 621-64-7 | 8070 | 10 |
| N-Nitrosomethylethalamine | 10595-95-6 | 8270 | 10 |
| N-Nitrosopiperidine.. | 100-75-4 | 8270 | 20 |
| N-Nitrosopyrrolidine.. | 930-55-2 | 8270 | 40 |
| 5-Nitro-o-toluidine...... | 99-55-8 | 8270 | 10 |
| Parathion................ | 56-38-2 | 8141 8270 |
0.5 10 |
| Pentachlorobenzene....... | 608-93-5 | 8270 | 10 |
| Pentachloronitrobenzene.. | 82-68-8 | 8270 | 20 |
| Pentachlorophenol...... | 87-86-5 | 8040 8270 |
5 50 |
| Phenacetin........... | 62-44-2 | 8270 | 20 |
| Phenanthrene...... | 85-01-8 | 8100 8270 |
200 10 |
| Phenol............. | 108-95-2 | 8040 | 1 |
| p-Phenylenediamine... | 106-50-3 | 8270 | 10 |
| Phorate............ | 298-02-2 | 8140 8141 8270 |
2 0.5 10 |
| Polychlorinated biphenyls; PCB's; Aroclors... | See Note 11 | 8080 8270 |
50 200 |
| Polychlorinated dibenzo-p- dioxins; PCDD's......... |
See Note 12 | 8280 | 0.01 |
| Polychlorinated dibenzo- furans; PCDF's....... |
See Note 13 | 8280 | 0.01 |
| Pronamide...... | 23950-58-8 | 8270 | 10 |
| Propionitrile; Ethyl cyanide......... |
107-12-0 | 8015 8260 |
60 150 |
| Pyrene........... | 129-00-0 | 8100 8270 |
200 10 |
| Safrole................... | 94-59-7 | 8270 | 10 |
| Silvex; 2,4,5-TP.......... | 93-72-1 | 8150 | 2 |
| Styrene................. | 100-42-5 | 8020 8021 8260 |
1 0.1 10 |
| 2,4,5-T; 2,4,5-trichloro- phenoxyacetic acid...... | 93-76-5 | 81 |