{"query":{"parameter":"beta endosulfan","place":"US-TX","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-TX","US"],"parameter_keys":["cas:33213-65-9","name:beta-endosulfan","name:alpha-endosulfan beta-endosulfan","name:b-endosulfan","cas:115-29-7","name:endosulfan (i ou α) et (ii ou β), totaux"],"names_matched":[["beta endosulfan","cas:33213-65-9"],["beta endosulfan","name:beta-endosulfan"],["alpha endosulfan beta endosulfan","name:alpha-endosulfan beta-endosulfan"],["b endosulfan","name:b-endosulfan","b endosulfan"],["endosulfan i and endosulfan ii alpha and beta summed","cas:115-29-7","endosulfan ii"],["endosulfan i ii","cas:115-29-7","endosulfan ii"],["endosulfan i ou et ii ou totaux","name:endosulfan (i ou α) et (ii ou β), totaux","endosulfan ii"],["endosulfan alpha and beta","cas:115-29-7","endosulfan beta"],["endosulfan alpha beta sulfate","cas:115-29-7","endosulfan beta"],["endosulfan beta","cas:115-29-7","endosulfan beta"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":20,"names":["Endosulfan"],"says":"20 rows share a parameter key with a longer name holding \"beta endosulfan\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"beta endosulfan\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":29,"offset":0,"returned":29,"next_offset":null,"rows":[{"id":"10d386d6bbe2fab8","parameter":"Endosulfan II","value":"2.7E+02","value_num":270,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, TotSoilComb, 0.5 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"f60c3eaad49a8da6","parameter":"Endosulfan II","value":"9.2E+01","value_num":92,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, GWSoilIng, 0.5 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"a76d3cad2860a4cc","parameter":"Endosulfan II","value":"9.2E+03","value_num":9200,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, GWSoilClass 3, 0.5 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"1a65bbf809a164cc","parameter":"Endosulfan II","value":"2.7E+02","value_num":270,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, TotSoilComb, 30 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"0173fa7c3456df5d","parameter":"Endosulfan II","value":"4.6E+01","value_num":46,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, GWSoilIng, 30 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"042901a43dc86e58","parameter":"Endosulfan II","value":"4.6E+03","value_num":4600,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 1, Residential Soil, GWSoilClass 3, 30 acre source area","page":14,"quote":"Endosulfan II 33213-65-9 2.7E+02 I n I 9.2E+01 I n 9.2E+03 I n >S ─ I ─ ─ I ─ ─ 2.7E+02 I n I 4.6E+01 I n I 4.6E+03 I n >S ─ I ─ I ─ I ─ ─"}},{"id":"d8e75d0680a80c8c","parameter":"Endosulfan II","value":"4.1E+03","value_num":4100,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, TotSoilComb, 0.5 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"20cb1d26e75c70b6","parameter":"Endosulfan II","value":"2.8E+02","value_num":280,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, GWSoilIng, 0.5 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"c7a2c9ed3aecb6e4","parameter":"Endosulfan II","value":"2.8E+04","value_num":28000,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 0.5 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, GWSoilClass 3, 0.5 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"081cc9827faea07b","parameter":"Endosulfan II","value":"4.1E+03","value_num":4100,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, TotSoilComb, 30 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"a3f21547cdf2f286","parameter":"Endosulfan II","value":"1.4E+02","value_num":140,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, GWSoilIng, 30 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"09d068968f5f1ac6","parameter":"Endosulfan II","value":"1.4E+04","value_num":14000,"unit":"mg/kg","direction":"max","kind":"threshold","medium":"soil","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use, 30 acre source area"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 2, Commercial/Industrial Soil, GWSoilClass 3, 30 acre source area","page":29,"quote":"Endosulfan II 33213-65-9 4.1E+03 n 2.8E+02 I n 2.8E+04 I n >S ─ I ─ ─ I ─ ─ 4.1E+03 n 1.4E+02 I n 1.4E+04 I n >S ─ I ─ ─ I ─ ─"}},{"id":"21cf197ca05aa213","parameter":"Endosulfan II","value":"1.5E-01","value_num":0.15,"unit":"mg/L","direction":"max","kind":"threshold","medium":"groundwater","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 3, Groundwater, GWGWIng, Residential","page":43,"quote":null}},{"id":"0c00406d2251822f","parameter":"Endosulfan II","value":"1.5E+01","value_num":15,"unit":"mg/L","direction":"max","kind":"threshold","medium":"groundwater","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","residential land use"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 3, Groundwater, GWGWClass3, Residential","page":43,"quote":null}},{"id":"512c671a60667720","parameter":"Endosulfan II","value":"4.4E-01","value_num":0.44,"unit":"mg/L","direction":"max","kind":"threshold","medium":"groundwater","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 3, Groundwater, GWGWIng, Commercial/Industrial","page":43,"quote":null}},{"id":"f3f386561e32f040","parameter":"Endosulfan II","value":"4.4E+01","value_num":44,"unit":"mg/L","direction":"max","kind":"threshold","medium":"groundwater","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria.","commercial/industrial land use"],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 3, Groundwater, GWGWClass3, Commercial/Industrial","page":43,"quote":null}},{"id":"3c6293fe3e00591d","parameter":"Endosulfan II (beta)","value":"0.22","value_num":0.22,"unit":"µg/L","statistic":"daily_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["receiving_water is freshwater","water in the state; acute criteria outside zones of initial dilution, chronic criteria in water with an aquatic life use of limited or greater, outside mixing zones and above critical low flow (30 TAC §307.6(c)(6))"],"cite":{"instrument":"us_tx_wqs","title":"Texas Surface Water Quality Standards, 30 TAC Chapter 307 (2022): §307.6 Table 1 aquatic life (freshwater and saltwater acute/chronic) and Table 2 human health; §307.7 Table 3 dissolved oxygen","issuer":"State of Texas, Texas Commission on Environmental Quality (TCEQ)","edition":"2022 Texas Surface Water Quality Standards (Rule Project No. 2020-014-307-OW), effective June 27, 2025, as US EPA posts them (cover dated July 1, 2025) with what EPA has approved for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2023-12/txwqs-2022.pdf","source_sha256":"88ff93dcfb277feec248541b2aa9a0f01cd3a747cda6e03d958344ee4a34ce5e","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"30 TAC §307.6(c) Table 1","page":38,"quote":null}},{"id":"3b5c75cda99f2c19","parameter":"Endosulfan II (beta)","value":"0.056","value_num":0.056,"unit":"µg/L","statistic":"weekly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["receiving_water is freshwater","water in the state; acute criteria outside zones of initial dilution, chronic criteria in water with an aquatic life use of limited or greater, outside mixing zones and above critical low flow (30 TAC §307.6(c)(6))"],"cite":{"instrument":"us_tx_wqs","title":"Texas Surface Water Quality Standards, 30 TAC Chapter 307 (2022): §307.6 Table 1 aquatic life (freshwater and saltwater acute/chronic) and Table 2 human health; §307.7 Table 3 dissolved oxygen","issuer":"State of Texas, Texas Commission on Environmental Quality (TCEQ)","edition":"2022 Texas Surface Water Quality Standards (Rule Project No. 2020-014-307-OW), effective June 27, 2025, as US EPA posts them (cover dated July 1, 2025) with what EPA has approved for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2023-12/txwqs-2022.pdf","source_sha256":"88ff93dcfb277feec248541b2aa9a0f01cd3a747cda6e03d958344ee4a34ce5e","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"30 TAC §307.6(c) Table 1","page":38,"quote":null}},{"id":"0dc95700d5d69ea6","parameter":"Endosulfan II (beta)","value":"0.034","value_num":0.034,"unit":"µg/L","statistic":"daily_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["receiving_water is marine","water in the state; acute criteria outside zones of initial dilution, chronic criteria in water with an aquatic life use of limited or greater, outside mixing zones and above critical low flow (30 TAC §307.6(c)(6))"],"cite":{"instrument":"us_tx_wqs","title":"Texas Surface Water Quality Standards, 30 TAC Chapter 307 (2022): §307.6 Table 1 aquatic life (freshwater and saltwater acute/chronic) and Table 2 human health; §307.7 Table 3 dissolved oxygen","issuer":"State of Texas, Texas Commission on Environmental Quality (TCEQ)","edition":"2022 Texas Surface Water Quality Standards (Rule Project No. 2020-014-307-OW), effective June 27, 2025, as US EPA posts them (cover dated July 1, 2025) with what EPA has approved for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2023-12/txwqs-2022.pdf","source_sha256":"88ff93dcfb277feec248541b2aa9a0f01cd3a747cda6e03d958344ee4a34ce5e","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"30 TAC §307.6(c) Table 1","page":38,"quote":null}},{"id":"880346049057c2ab","parameter":"Endosulfan II (beta)","value":"0.009","value_num":0.009,"unit":"µg/L","statistic":"weekly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:33213-65-9","place":["US-TX"],"conditions":["receiving_water is marine","water in the state; acute criteria outside zones of initial dilution, chronic criteria in water with an aquatic life use of limited or greater, outside mixing zones and above critical low flow (30 TAC §307.6(c)(6))"],"cite":{"instrument":"us_tx_wqs","title":"Texas Surface Water Quality Standards, 30 TAC Chapter 307 (2022): §307.6 Table 1 aquatic life (freshwater and saltwater acute/chronic) and Table 2 human health; §307.7 Table 3 dissolved oxygen","issuer":"State of Texas, Texas Commission on Environmental Quality (TCEQ)","edition":"2022 Texas Surface Water Quality Standards (Rule Project No. 2020-014-307-OW), effective June 27, 2025, as US EPA posts them (cover dated July 1, 2025) with what EPA has approved for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2023-12/txwqs-2022.pdf","source_sha256":"88ff93dcfb277feec248541b2aa9a0f01cd3a747cda6e03d958344ee4a34ce5e","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"30 TAC §307.6(c) Table 1","page":38,"quote":null}},{"id":"d5cd77edd1dbdec1","parameter":"Endosulfan II","value":"0.029","value_num":0.029,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:33213-65-9","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","section":"40 CFR 268.48, Table UTS, Organic Constituents, wastewater standard","page":null,"quote":"Endosulfan II 33213-65-9 0.029 0.13"}},{"id":"ba0e75c93f1dd1c1","parameter":"Endosulfan II","value":"0.13","value_num":0.13,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:33213-65-9","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","section":"40 CFR 268.48, Table UTS, Organic Constituents, nonwastewater standard","page":null,"quote":"Endosulfan II 33213-65-9 0.029 0.13"}},{"id":"3f9cc481f7096893","parameter":"beta-Endosulfan","value":"0.22","value_num":0.22,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:33213-65-9","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"beta-Endosulfan (P) 33213659 0.22 0.056 0.034 0.0087 1980"}},{"id":"cd92103432b48a2c","parameter":"beta-Endosulfan","value":"0.056","value_num":0.056,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:33213-65-9","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CCC (chronic): criterion continuous concentration, chronic"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"beta-Endosulfan (P) 33213659 0.22 0.056 0.034 0.0087 1980"}},{"id":"06d21a9ede4ae47a","parameter":"beta-Endosulfan","value":"0.034","value_num":0.034,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:33213-65-9","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is marine","Saltwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); 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