{"query":{"parameter":"acrylic acid","place":"US-PA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-PA","US"],"parameter_keys":["cas:79-10-7","cas:9003-06-9","cas:25987-30-8","cas:68479-09-4","cas:71050-62-9","cas:72269-91-1","cas:25119-93-1","cas:64614-15-9","cas:163206-24-4","cas:28205-96-1","cas:25101-94-4","cas:43127-23-7","cas:102972-64-5","cas:26010-51-5","cas:69215-54-9","cas:170475-04-4","cas:104032-39-5","cas:42767-92-0","cas:54626-91-4","cas:25750-06-5","cas:36179-96-1","cas:97-63-2","cas:80-62-6","cas:67584-55-8","cas:26781-49-7","cas:36425-15-7","cas:72252-50-7","cas:25767-47-9","cas:74082-30-7","cas:140-88-5","cas:113221-69-5","cas:129828-31-5","cas:178603-70-8","cas:29009-41-4","cas:1802633-48-2","cas:67905-91-3","cas:144086-03-3","cas:925-60-0","cas:66019-18-9","cas:79-41-4"],"names_matched":[["acrylic acid","cas:79-10-7"],["acrylamide acrylic acid polymer","cas:9003-06-9"],["acrylic acid acrylamide polymer sodium salt","cas:25987-30-8"],["acrylic acid sodium hydrogen sulfite telomer sodium salt","cas:68479-09-4"],["acrylic acid sodium phosphinate polymer","cas:71050-62-9"],["acrylic acid triester with 2 ethyl 2 hydroxymethyl 1 3 propanediol","cas:72269-91-1"],["acrylic acid triester with 2 ethyl 2 hydroxymethyl 1 3 propanediol butyl acrylate polymer","cas:25119-93-1"],["butyl methacrylate butyl acrylate styrene methyl methacrylate propylene glycol monoacrylate acrylic acid polymer","cas:64614-15-9"],["fatty acids tall oil reaction products with acrylic acid and diethylenetriamine","cas:163206-24-4"],["methacrylic acid acrylic acid polymer sodium salt","cas:28205-96-1"],["tall oil fatty acids reaction products with diethylenetriamine and acrylic acid","cas:163206-24-4"],["12 hydroxyoctadecanoic acid polymer with methyl 2 methyl 2 propenoate 2 methyl 2 propenoic acid and oxiranylmethyl 2 methyl 2 propenoate","cas:25101-94-4","2 propenoic acid"],["2 methyl 2 propenoic acid 2 dimethylamino ethyl ester homopolymer","cas:43127-23-7","2 propenoic acid"],["2 methyl 2 propenoic acid 2 dimethylamino ethyl ester polymer with 1 ethenylhexahydro 2h azepin 2 one and vinylpyrrolidone","cas:102972-64-5","2 propenoic acid"],["2 methyl 2 propenoic acid 2 hydroxyethyl ester polymer with ethenylbenzene","cas:26010-51-5","2 propenoic acid"],["2 methyl 2 propenoic acid 2 hydroxyethyl ester polymer with ethenylbenzene methyl 2 methyl 2 propenoate and 2 methylpropyl 2 methyl 2 propenoate","cas:69215-54-9","2 propenoic acid"],["2 methyl 2 propenoic acid butyl ester polymer with 1 2 propanediol mono 2 propenoate","cas:170475-04-4","2 propenoic acid"],["2 methyl 2 propenoic acid butyl ester polymer with butyl 2 propenoate ethenylbenzene and 1 2 propanediol mono 2 propenoate","cas:104032-39-5","2 propenoic acid"],["2 methyl 2 propenoic acid butyl ester polymer with butyl 2 propenoate ethenylbenzene methyl 2 methyl 2 propenoate 1 2 propanediol mono 2 propenoate and 2 propenoic acid","cas:64614-15-9","2 propenoic acid"],["2 methyl 2 propenoic acid methyl ester polymer with butyl 2 propenoate ethenylbenzene and 2 hydroxyethyl 2 propenoate","cas:42767-92-0","2 propenoic acid"],["2 methyl 2 propenoic acid methyl ester polymer with ethenol and ethenyl acetate","cas:54626-91-4","2 propenoic acid"],["2 methyl 2 propenoic acid methyl ester polymer with ethenylbenzene and 2 ethylhexyl 2 propenoate","cas:25750-06-5","2 propenoic acid"],["2 methyl 2 propenoic acid polymer with 2 propenoic acid sodium salt","cas:28205-96-1","2 propenoic acid"],["2 methyl 2 propenoic acid polymer with butyl 2 propenoate ethenylbenzene 2 hydroxyethyl 2 methyl 2 propenoate and methyl 2 methyl 2 propenoate","cas:36179-96-1","2 propenoic acid"],["2 propenoic acid 2 methyl 2 dimethylamino ethyl ester homopolymer acetate","cas:43127-23-7","2 propenoic acid"],["2 propenoic acid 2 methyl 2 hydroxyethyl ester polymer with ethenylbenzene","cas:26010-51-5","2 propenoic acid"],["2 propenoic acid 2 methyl ethyl ester","cas:97-63-2","2 propenoic acid"],["2 propenoic acid 2 methyl methyl ester","cas:80-62-6","2 propenoic acid"],["2 propenoic acid 2 methyl methyl ester polymer with butyl 2 propenoate ethenylbenzene and 2 hydroxyethyl 2 propenoate","cas:42767-92-0","2 propenoic acid"],["2 propenoic acid 2 methyl methyl ester polymer with ethenol and ethenyl acetate","cas:54626-91-4","2 propenoic acid"],["2 propenoic acid 2 methyl nonafluorobutyl sulfonyl amino ethyl ester","cas:67584-55-8","2 propenoic acid"],["2 propenoic acid 2 methyl oxiranylmethyl ester polymer with chloroethene and ethenyl acetate","cas:26781-49-7","2 propenoic acid"],["2 propenoic acid 2 methyl polymer with butyl 2 propenoate ethenylbenzene 2 hydroxyethyl 2 methyl 2 propenoate and methyl 2 methyl 2 propenoate","cas:36179-96-1","2 propenoic acid"],["2 propenoic acid 2 methyl polymer with chloromethyl oxirane and 4 4 1 methylethylidene bis phenol","cas:36425-15-7","2 propenoic acid"],["2 propenoic acid 2 methyl polymer with ethenylbenzene 2 ethylhexyl 2 propenoate 2 hydroxyethyl 2 methyl 2 propenoate and 2 methylpropyl 2 methyl 2 propenoate","cas:72252-50-7","2 propenoic acid"],["2 propenoic acid butyl ester polymer with 2 ethyl 2 1 oxo 2 propenyl oxy methyl 1 3 propanediyl di 2 propenoate","cas:25119-93-1","2 propenoic acid"],["2 propenoic acid butyl ester polymer with ethenylbenzene","cas:25767-47-9","2 propenoic acid"],["2 propenoic acid butyl ester polymer with ethenylbenzene 2 5 furandione and methyl 2 propenoate","cas:74082-30-7","2 propenoic acid"],["2 propenoic acid ethyl ester","cas:140-88-5","2 propenoic acid"],["2 propenoic acid ethyl ester polymer with ethenyl acetate and 2 5 furandione hydrolyzed","cas:113221-69-5","2 propenoic acid"],["2 propenoic acid methyloxiranynmethyl ester polymer with chloroethene","cas:26781-49-7","2 propenoic acid"],["2 propenoic acid polymer with 2 propenamide","cas:9003-06-9","2 propenoic acid"],["2 propenoic acid polymer with 4 1 1 dimethylethyl phenol formaldehyde 2 5 furandione 2 methyloxirane 4 nonylphenol and oxirane","cas:129828-31-5","2 propenoic acid"],["2 propenoic acid polymer with 4 1 1 dimethylethyl phenol formaldehyde 2 5 furandione 2 methyloxirane and oxirane","cas:178603-70-8","2 propenoic acid"],["2 propenoic acid polymer with 4 1 1 dimethylethyl phenol formaldehyde 2 5 furandione methyloxirane 4 nonylphenol and oxirane","cas:129828-31-5","2 propenoic acid"],["2 propenoic acid polymer with 4 1 1 dimethylethyl phenol formaldehyde 2 5 furandione methyloxirane and oxirane","cas:178603-70-8","2 propenoic acid"],["2 propenoic acid polymer with ethyl 2 propenoate and 2 propenenitrile","cas:29009-41-4","2 propenoic acid"],["2 propenoic acid polymer with ethylenediamine oxirane methyloxirane 2 5 furandione methyl oxirane and oxirane","cas:1802633-48-2","2 propenoic acid"],["2 propenoic acid polymer with formaldehyde 2 5 furandione methyloxirane 4 nonylphenol and oxirane","cas:67905-91-3","2 propenoic acid"],["2 propenoic acid polymer with oxirane and 1 2 3 propanetriol","cas:144086-03-3","2 propenoic acid"],["2 propenoic acid polymer with sodium phosphinate","cas:71050-62-9","2 propenoic acid"],["2 propenoic acid propyl ester","cas:925-60-0","2 propenoic acid"],["2 propenoic acid telomer with sodium hydrogen sulfite","cas:66019-18-9","2 propenoic acid"],["2 propenoic acid telomer with sodium sulfite 1 1","cas:66019-18-9","2 propenoic acid"],["ethenylbenzene 2 ethylhexyl 2 propenoate 2 methylpropyl 2 methyl 2 propenoate hydroxyethyl 2 methyl 2 propenoate 2 methyl 2 propenoic acid polymer","cas:72252-50-7","2 propenoic acid"],["methacrylic acid 2 methyl 2 propenoic acid","cas:79-41-4","2 propenoic acid"],["octadecanoic acid 12 hydroxy polymer with methyl 2 methyl 2 propenoate 2 methyl 2 propenoic acid and oxiranylmethyl 2 methyl 2 propenoate","cas:25101-94-4","2 propenoic acid"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":79,"names":["ETHYL METHACRYLATE","METHYL METHACRYLATE","ETHYL ACRYLATE","Ethyl Methacrylate","Methyl Methacrylate","Ethyl Acrylate","Ethyl methacrylate","Methyl methacrylate"],"says":"79 rows share a parameter key with a longer name holding \"acrylic acid\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"acrylic acid\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":25,"offset":0,"returned":25,"next_offset":null,"rows":[{"id":"1bbc9a7fc55a74c2","parameter":"ACRYLIC ACID","value":"2.1","value_num":2.1,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer used or currently planned to be used for drinking water or agriculture, total dissolved solids 2,500 mg/L or less (25 Pa. Code §250.304(c))","residential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (used aquifer, TDS ≤ 2500, R)","page":1,"quote":null}},{"id":"d4cc3f726239dce7","parameter":"ACRYLIC ACID","value":"8.8","value_num":8.8,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer used or currently planned to be used for drinking water or agriculture, total dissolved solids 2,500 mg/L or less (25 Pa. Code §250.304(c))","nonresidential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (used aquifer, TDS ≤ 2500, NR)","page":1,"quote":null}},{"id":"e3da979226a5c637","parameter":"ACRYLIC ACID","value":"210","value_num":210,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer used or currently planned to be used whose naturally occurring background total dissolved solids exceed 2,500 mg/L (§250.304(e))","residential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (used aquifer, TDS > 2500, R)","page":1,"quote":null}},{"id":"82991351ddc54974","parameter":"ACRYLIC ACID","value":"880","value_num":880,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer used or currently planned to be used whose naturally occurring background total dissolved solids exceed 2,500 mg/L (§250.304(e))","nonresidential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (used aquifer, TDS > 2500, NR)","page":1,"quote":null}},{"id":"897846278888a657","parameter":"ACRYLIC ACID","value":"210","value_num":210,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer not used or currently planned to be used (§250.304(d))","residential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (nonuse aquifer, R)","page":1,"quote":null}},{"id":"00e12ded0df99bf6","parameter":"ACRYLIC ACID","value":"880","value_num":880,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","groundwater in an aquifer not used or currently planned to be used (§250.304(d))","nonresidential standard"],"cite":{"instrument":"us_pa_act2_gw","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for groundwater, Appendix A Tables 1-2, as DEP publishes them, with the 2024 PFAS MSCs","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 1 November 2021, Table 2 November 2023; the PFAS MSCs effective June 25, 2024 (DEP, updated 7/10/2024); DEP's bromobenzene correction as its Statewide Health Standards page states it on 2026-10-15","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%201.pdf","source_sha256":"5bc985b6f8b3595b0684a060dbc14d170987bbc89a70737370e1887c3932b13c","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 1 - Medium-Specific Concentrations (MSCs) for Organic Regulated Substances in Groundwater (nonuse aquifer, NR)","page":1,"quote":null}},{"id":"e42190b1a8dc4abd","parameter":"ACRYLIC ACID","value":"19","value_num":19,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","a direct contact numeric value: the soil MSC is the lowest of it and the soil-to-groundwater numeric value, or it with a soil buffer or equivalency demonstration (§250.305(c)-(e))","residential, soil 0-15 feet from the existing ground surface (§250.305(c))"],"cite":{"instrument":"us_pa_act2_soil","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for soil, Appendix A Tables 3-4 (direct contact and soil to groundwater), as DEP publishes them","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 3A November 2021, Table 3B January 2022, Tables 4A and 4B November 2023","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%203a.pdf","source_sha256":"546e6e1ac858eb7cccc6d8f5a029fa8a9a4f7976e589cf983ef8f359b491dfb7","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 3 - MSCs for Organic Regulated Substances in Soil, A. Direct Contact Numeric Values (R)","page":1,"quote":null}},{"id":"80d8f1cdb6833db1","parameter":"ACRYLIC ACID","value":"79","value_num":79,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","a direct contact numeric value: the soil MSC is the lowest of it and the soil-to-groundwater numeric value, or it with a soil buffer or equivalency demonstration (§250.305(c)-(e))","nonresidential, surface soil 0-2 feet (§250.305(d))"],"cite":{"instrument":"us_pa_act2_soil","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for soil, Appendix A Tables 3-4 (direct contact and soil to groundwater), as DEP publishes them","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 3A November 2021, Table 3B January 2022, Tables 4A and 4B November 2023","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%203a.pdf","source_sha256":"546e6e1ac858eb7cccc6d8f5a029fa8a9a4f7976e589cf983ef8f359b491dfb7","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 3 - MSCs for Organic Regulated Substances in Soil, A. Direct Contact Numeric Values (NR 0-2 ft)","page":1,"quote":null}},{"id":"b500273eeab989cc","parameter":"ACRYLIC ACID","value":"91","value_num":91,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","a direct contact numeric value: the soil MSC is the lowest of it and the soil-to-groundwater numeric value, or it with a soil buffer or equivalency demonstration (§250.305(c)-(e))","nonresidential, subsurface soil 2-15 feet (§250.305(e))"],"cite":{"instrument":"us_pa_act2_soil","title":"25 Pa. Code ch. 250 (Act 2) — Statewide health standard MSCs for soil, Appendix A Tables 3-4 (direct contact and soil to groundwater), as DEP publishes them","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection, Land Recycling Program)","edition":"the Appendix A tables in force from November 20, 2021 (51 Pa.B. 7173) as DEP publishes them: Table 3A November 2021, Table 3B January 2022, Tables 4A and 4B November 2023","source_url":"https://files.dep.state.pa.us/EnvironmentalCleanupBrownfields/LandRecyclingProgram/LandRecyclingProgramPortalFiles/GuidanceTechTools/VaporIntrusion/November_2021/Table%203a.pdf","source_sha256":"546e6e1ac858eb7cccc6d8f5a029fa8a9a4f7976e589cf983ef8f359b491dfb7","fetched_at":"2026-10-15","section":"25 Pa. Code ch. 250 Appendix A, Table 3 - MSCs for Organic Regulated Substances in Soil, A. Direct Contact Numeric Values (NR 2-15 ft)","page":1,"quote":null}},{"id":"2a7770e499728065","parameter":"ACRYLIC ACID","value":"0.21","value_num":0.21,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:79-10-7","place":["US-PA"],"conditions":["the Statewide health standard under Act 2 (Land Recycling and Environmental Remediation Standards Act): a person may instead attain the background or a site-specific standard","a soil-to-groundwater numeric value (§250.308(a)): a person may instead show the soil's SPLP leachate does not exceed the groundwater MSC, or use the soil buffer distance (§250.308(b)) or an equivalency demonstration (§250.308(d)); soil below 15 feet takes only this pathway (§250.305(f))","the option 100 times the applicable groundwater MSC, expressed as mg/kg (§250.308(a)(1))","groundwater in an aquifer used or currently planned to be used for drinking water or agriculture, total dissolved solids 2,500 mg/L or less (25 Pa. 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