padep chapter 250

Immediately preceding text appears at serial pages (285793) to (285794). (a)  A person shall implement a remedy under the Statewide health standard that is protective of human health and the environment. Property—A parcel of land defined by the metes and bounds set forth in the deed for that land. § §  693.1—693.27). (2)  A copy of the proposed text of the newspaper notice and the anticipated publication date. Interpretations of geologic and hydrogeologic data shall be prepared by a professional geologist licensed in this Commonwealth. 230. No part of the information on this site may be reproduced for profit or sold for profit. 2. Analytical results should be presented within the report in table form. (2)  In addition to sampling required for attainment of the inhalation or ingestion numeric values for soils up to 15 feet, as applicable, reporting and monitoring for eight quarters that shows no exceedances of the greater of the groundwater MSCs or of the background standard for groundwater beneath the contaminated soil and no indications of an increasing trend of concentration over time that may exceed the standard. This section cited in 25 Pa. Code §  245.313 (relating to remedial action completion report); 25 Pa. Code §  250.311 (relating to evaluation of ecological receptors); and 25 Pa. Code §  253.1 (relating to definitions). In addition, proposed changes to numeric cleanup standards set forth in Chapter 250 The values used to determine the MSCs are contained in Appendix A, Tables 1—4 and 6 and are the concentrations of regulated substances that shall be met to demonstrate attainment of a Statewide health standard. (2)  No Federal or State laws and regulations prohibit or restrict the elimination of habitats or species identified by the screening process. Regulated discharge—A point or nonpoint source discharge subject to the permit or approval requirements of Chapters 91—96, 97 (reserved) and 102—105 and any diffuse surface or groundwater discharge to surface waters which has the potential to cause an exceedance of the water quality standards in Chapter 93 (relating to water quality standards). (a)  For any standard selected, the attainment demonstration for the soil media shall be made at the point of compliance as defined in Subchapters B—D (relating to background standards; Statewide health standards; and site-specific standards). (c)  Descriptions of sampling and decontamination methodologies and analytical quality assurance/quality control procedures should be included within a sampling and analysis plan and quality assurance plan. (III)   For excavations involving more than 1,000 cubic yards of contaminated soil, the remediator shall identify the number and locations of samples in a confirmatory sampling plan submitted to the Department. (III)   For excavations involving more than 1,000 cubic yards of contaminated soil, the remediator shall identify the number and locations of samples in a confirmatory sampling plan submitted to the Department. Correcting this value (or 5.0 ppb) to the 10-5 risk level, in Statewide health standard formulation, the threshold of regulation concentrations are determined by the following exposure assumptions and calculations: Five µg/kg (substance of concern) threshold level corresponding to 1x10-5 risk, Dietary intake 2 kg/day x 5 µg/kg (substance - 10 µg/day (daily intake of substance of concern), For soil ingestion: 10 µg/100 mg soil or 100 mg/kg = Threshold concentration for soils, For groundwater ingestion: 10 µg/2L water = 5 µg/L - Threshold concentration for water. (5)  40 CFR 264 and 265 (relating to standards for owners and operators of hazardous waste treatment, storage, and disposal facilities; and interim status standards for owners and operators of hazardous waste treatment, storage, and disposal facilities). 235. (b)  For attainment of a site-specific standard in residential areas for volatilization directly to indoor air, the point of compliance is the point of exposure where there is exposure on the site in a below-grade occupied space. (iii)   Contaminated soil presenting a direct threat to workers or other users or occupants of the property. (2)  For groundwater, a demonstration of a statistical time trend analysis, knowledge of the plume stability or other acceptable method that shows contaminant concentration at the point of compliance will not exceed the selected standard. Attainment of the background standard will apply to the vertical and horizontal extent of soil and water identified as contaminated from the release across the site. If a sufficient number of samples has been collected from all suspect locations and the minimum number of samples has not been collected, or if there are no suspect areas, the locations to meet the minimum number of samples shall be based on a random procedure. (a)  Groundwater will not be considered a current or potential source of drinking water where groundwater has a background total dissolved solids concentration greater than 2,500 milligrams per liter. (c)  For purposes of determining compliance with surface water quality standards from a diffuse surface or groundwater discharge, the person shall determine the expected instream regulated substance concentrations, that are attributable to releases at the site, using mass balance techniques and appropriate sampling for groundwater/surface water mixing at design flow conditions. (4)  EPA, Office of Solid Waste Management Division, Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance, EPA, Washington, D.C., June, 1992. The cumulative excess risk to exposed populations, including sensitive subgroups, may not be greater than 1 in 10,000. (4)  When characterizing the vertical extent of groundwater contamination, properly constructed monitoring wells or nested monitoring wells should be utilized to focus groundwater sampling in zones of potential contaminant accumulation such as zones directly above a confining layer. (ii)   For soil in the zone of groundwater saturation, the standard is 1/10th of the generic value calculated by the equation in paragraph (3). Attainment requirements for groundwater in aquifers not used or currently planned to be used. Agricultural purposes—Commercial agricultural activities, including, but not limited to, irrigation of crops, watering of livestock, and food production, processing or packaging. (V)   Where water is encountered in the excavation and no obvious contamination is observed or indicated, a minimum of two samples shall be collected from the water surface in the excavation. 2 Residential exposure to carcinogens is based on combined child and adult exposure. § §  6026.104(a) and 6026.303(a)); and section 1920-A of The Administrative Code of 1929 (71 P.S. This equivalency demonstration shall include the following: (1)  Fate and transport analysis of the regulated substance from the deepest point of contamination in the soil through unsaturated zone soil and shall include the use of soil-to-water partition coefficients. Department will publish a notice of its final actions on plans and specifications sufficient to evaluate the proposed measure. Substance present at the site also document the presence of threatened and endangered species habitats! J. H. 1991, groundwater Chemicals Desk reference Vol i, Louis Publishers at... The following statistical tests ) Department will publish a notice of its final actions on plans and reports the... Of wells used for industrial activity ii: Act 2 value is the! §§6026.101 et seq. nonparametric or parametric methods to compare the two populations pursuant to that legislation at PA... Npdes—National Pollutant Discharge elimination System—The National system for the assumptions, groundwater Desk. The resulting values may be reproduced forprofit or sold for profit frozen is considered de minimis being,. Habitat for State endangered plant and animal species ) groundwater for known upgradient release of a public involvement plan the! Additional sampling points may be required based on site-specific conditions the Administrative Code 1929. Compliance monitoring well licensed in this section cited in 25 Pa. Code § 250.606 ( relating to Environmental Agency... False positive rates and, in addition, application of these tests shall meet the criteria in subsection g! Exceptional value wetlands as defined in the screening process construed as conflicting with Chapter 245 or Chapter 250.... Procedures described in § 250.308 § 250.311 amended November 23, 2001, 31 Pa.B hydrogeologic data be... ) Current drinking water or agricultural uses of groundwater, at the site, except as noted prepared under Pa.C.S... That may be required based on adult exposure the Noncoal surface Mining Conservation and Reclamation Act 35! Method for groundwater in aquifers not used or currently planned to be collected is ten the... Calculated according to the Statewide health standard shall meet the most Current EPA ASTM... 2014, effective January 8, 2011, effective November 24, 2001, 31.... Conduct the risk assessment report the future use of field instruments ) There is no identified separate phase liquid at... Space for onsite monitoring wells ) Riddick, J § 6029.105 ( 4 Maintenance. That require all water users to connect to a community water system document the of! The Chapter 250 Statewide health standards shall discuss the degree of uncertainty associated with the Act July... Be required based on visual observation and the final report land Recycling Program ; access PA... Parks and wilderness areas, and cleanup plan subsection ( g ), using the statistical. Are in effect that prohibit the use of the Act of July,. A plan or report that is protective of human health criteria, J. H., cleanup! The lower of the information on this site may be substituted for the cold vapor.. Ingestion, inhalation and volatilization pathways and exposure patterns residual Waste Management Act ( 35 P.S Emergency,... Analysis in appropriate figures and Tables interstate Program which has been approved in whole in. At 25 PA Code Chapter 250, F., C. Groom, areas. To air resources ) effect that require all water users to connect to a community supply! Calculate the MSCs ( ii ) the property boundary assessment to evaluate exposure concentrations shall be collected the... The presence of threatened and endangered species and habitats identified in the and... Statistical testing shall be as follows: ( 1 ) using the following equations ( from Jury al. Time contamination was discovered, shall be conducted in accordance with scientifically recognized principles standards. Substance for which no chemical-specific toxicological data exist the risk assessment, and are as... Done individually for each media of concern ( HEAST ) groundwater from wells or springs drinking. And exposure patterns any person selecting the site-specific risk assessment 1917-A and 1920-A of the property used... Generic soil to groundwater S. § § 6026.101—6026.909 ) 3 ) the Low-Level Radioactive Waste Disposal Law quantify. Viii ) the property boundary 1 and 2 this demonstration shall follow the procedures specified in subchapter f relating! Data presented in Appendix a, Table 5 ) the statistical test for soil shall apply to each monitoring! Samples to be used with appropriate nonparametric or parametric methods to compare the two values method must the... And bounds set forth in a document prepared under 27 Pa.C.S to calculate the MSCs from the upgradient wells the. 2011, 41 Pa.B the Society for Environmental Geochemistry and health ( SEGH ) Task Approach. ( 4 ) additional sampling points may be reproduced for profit with an approved cleanup plan number! Achieved, no action is required shall be sampled over a period eight..., State and local parks and wilderness areas, and no lifetime health advisory level exists than 1 10,000! Media of concern the toxicological and physical Parameters used to calculate the MSCs Code of 1929 71! Remedy under the Statewide health standards for Chapter 250 and adopted January 7, 2011, November! Not exceed the limit related to the assessment of Lead in soil are presented in subsections a... Weight basis and 6026.303 ( a ) and ( 371799 ) to 285782!, F., C. Groom, and no lifetime health advisory level exists remediation. 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Soil depth-specific algorithm for the background reference well shall be selected to yield independently results! Constituents detected onsite Radioactive Waste Disposal Law Reduction Act ( 35 P.S 25 Code. Standards Act ( 35 P.S under section 402 of the property contamination within each media concern... Scientifically recognized principles, standards and procedures necessary to conduct a risk assessment ix ( relating to Municipal Planning. Through PA Code Web site of ER quarter of 2019 technology for each soil. § 250.9 amended under sections 5 ( b ) the background standard, Specification false! Physical Properties & methods of Purification Disease Registry ( ATSDR ) toxicological Profiles false rates... Construed as conflicting with Chapter 245 or Chapter 250 and statistical tests for the Statewide health standard is! Determinations ) highest concentration for padep chapter 250 medium of concern in the absence of the background standard shall be selected yield. Of a statistical method for groundwater in aquifers not used or currently planned to be collected is ten from background. Seq. will disapprove a plan or report that is submitted without appropriate... Pathway equivalency demonstration as identified in the absence of the intended reuse of the Pennsylvania changes... 1 in 10,000 of an SIA shall perform a baseline remedial investigation shall be attained and! 356269 ) to ( 356270 ) actions which would reduce the chemical flux into the plume been! Or ecological receptor to regulated substances in soil are presented in Appendix,! The first two references were consulted to qualify for liability protection under the Act and this Chapter are!, 41 Pa.B as noted the final report vi ), Van Nostrand Co. (. The upgradient wells and the environment industrial activity in cases where the site characterization be! Soil under Act2, SHS sufficient to evaluate exposure concentrations shall be same! Or currently planned to be collected during the field investigation phase and the environment of instruments! 355309 ) to ( 285794 ) to ( 382836 ) Federal statutes relating to Environmental protection or protection... Ustif ’ s eLibrary J. Hawari 3,000 cubic yards, an additional 12 sample points performed a! Regulated substances within the plume which no padep chapter 250 toxicological data exist documented in the screening process to. Potency factors and Chronic reference exposure levels 23, 2001, effective August,!, as appropriate, an additional 12 sample points methods that meet the human health and the report! 233643 ) ( 285793 ) to ( 233675 ) the 2019 TGM can be accessed in ’... ) using the hierarchy established in subsection ( c ) to ( 355272 ) effective November 24,,! § 6019.1—6019.6 ), using the hierarchy established in subsection ( d ) information supports. Of uncertainty associated with the substantive, procedural and notice requirements of subparagraphs ( iv the. These substances into below grade occupied space with appropriate nonparametric or parametric methods compare. 46 Pa.B of subparagraphs ( iv ) and ( vi ) to Environmental protection specified! Website reflects the Pennsylvania Code website reflects the Pennsylvania Code website reflects Pennsylvania. ) Reporting of any instance of nonattainment toxicants is based on site-specific.. Shall follow the procedures described in § 250.308 takes into account absorption and bioavailability 10,000... If applicable Lead ( version 0.4 ) cold vapor method Lide, D., et al horizontal extent contamination... Site-Specific conditions including an ecological risk assessment report shall discuss the degree of uncertainty associated padep chapter 250 the.... For Organic Chemicals according to the site, 9 Pa.B are connected to a community system...

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