{"query":{"parameter":"chlordane","place":"US-MT","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MT","US"],"parameter_keys":["cas:12789-03-6","cas:57-74-9","cas:5103-71-9","cas:5103-74-2","cas:5566-34-7","cas:39765-80-5"],"names_matched":[["chlordane","cas:12789-03-6"],["chlordane","cas:57-74-9"],["alpha chlordane","cas:5103-71-9"],["chlordane alpha","cas:5103-71-9"],["chlordane alpha isomer","cas:5103-71-9"],["chlordane gamma","cas:5103-74-2"],["chlordane gamma isomer","cas:5103-74-2"],["cis chlordane","cas:5103-71-9"],["gamma chlordane","cas:5566-34-7"],["trans chlordane","cas:5103-74-2"],["trans nonachlor chlordane component","cas:39765-80-5"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":27,"offset":0,"returned":27,"next_offset":null,"rows":[{"id":"748099dc7110c43a","parameter":"Chlordane","value":"1.2 PP","value_num":1.2,"unit":"µg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:57-74-9","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (aquatic life standards; DEQ-7 applies to the waters ARM 17.30.620-670 classify)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; footnote (15) dissolved oxygen","issuer":"State of Montana, Department of Environmental Quality (Water Quality Division)","edition":"Circular DEQ-7, June 2019, as US EPA posts it in effect for CWA purposes (cover April 7, 2020; last EPA action April 23, 2018)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mt-deq7.pdf","source_sha256":"beda1c7ee072086eaa2da108a4d3432ea613a1f7477fd3e008755c4834ff6dd8","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Circular DEQ-7 (June 2019)","page":21,"quote":null}},{"id":"394da132025e5b23","parameter":"Chlordane","value":"0.0043 PP","value_num":0.0043,"unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:57-74-9","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (aquatic life standards; DEQ-7 applies to the waters ARM 17.30.620-670 classify)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; footnote (15) dissolved oxygen","issuer":"State of Montana, Department of Environmental Quality (Water Quality Division)","edition":"Circular DEQ-7, June 2019, as US EPA posts it in effect for CWA purposes (cover April 7, 2020; last EPA action April 23, 2018)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mt-deq7.pdf","source_sha256":"beda1c7ee072086eaa2da108a4d3432ea613a1f7477fd3e008755c4834ff6dd8","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Circular DEQ-7 (June 2019)","page":21,"quote":null}},{"id":"c79021be3b88c867","parameter":"Chlordane","value":"0.0031 PP","value_num":0.0031,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:57-74-9","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (human health surface water standard: water and fish consumption, 2.4 L and 22 g/day)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; footnote (15) dissolved oxygen","issuer":"State of Montana, Department of Environmental Quality (Water Quality Division)","edition":"Circular DEQ-7, June 2019, as US EPA posts it in effect for CWA purposes (cover April 7, 2020; last EPA action April 23, 2018)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mt-deq7.pdf","source_sha256":"beda1c7ee072086eaa2da108a4d3432ea613a1f7477fd3e008755c4834ff6dd8","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Circular DEQ-7 (June 2019)","page":21,"quote":null}},{"id":"6da926da8c1994ff","parameter":"alpha-Chlordane","value":"0.008 HA","value_num":0.008,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:5103-71-9","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (human health surface water standard: water and fish consumption, 2.4 L and 22 g/day)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; footnote (15) dissolved oxygen","issuer":"State of Montana, Department of Environmental Quality (Water Quality Division)","edition":"Circular DEQ-7, June 2019, as US EPA posts it in effect for CWA purposes (cover April 7, 2020; last EPA action April 23, 2018)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mt-deq7.pdf","source_sha256":"beda1c7ee072086eaa2da108a4d3432ea613a1f7477fd3e008755c4834ff6dd8","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Circular DEQ-7 (June 2019)","page":12,"quote":null}},{"id":"6b437a8f5bd722f3","parameter":"gamma-Chlordane","value":"0.008 HA","value_num":0.008,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:5566-34-7","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (human health surface water standard: water and fish consumption, 2.4 L and 22 g/day)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; footnote (15) dissolved oxygen","issuer":"State of Montana, Department of Environmental Quality (Water Quality Division)","edition":"Circular DEQ-7, June 2019, as US EPA posts it in effect for CWA purposes (cover April 7, 2020; last EPA action April 23, 2018)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mt-deq7.pdf","source_sha256":"beda1c7ee072086eaa2da108a4d3432ea613a1f7477fd3e008755c4834ff6dd8","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Circular DEQ-7 (June 2019)","page":43,"quote":null}},{"id":"8032a9410f724a8e","parameter":"trans-Nonachlor (Chlordane component)","value":"0.008 PP","value_num":0.008,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:39765-80-5","place":["US-MT"],"conditions":["receiving_water is freshwater","Montana surface waters (human health surface water standard: water and fish consumption, 2.4 L and 22 g/day)"],"cite":{"instrument":"us_mt_wqs","title":"Montana Circular DEQ-7 Numeric Water Quality Standards: aquatic life acute and chronic and human health surface water standards; 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SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"73f0952917135491","parameter":"Chlordane (technical mixture)","value":"0.27","value_num":0.27,"unit":"mg/kg","direction":"max","kind":"printed_reference","medium":"soil","level":"national","parameter_key":"cas:12789-03-6","place":["US"],"conditions":["Protection of Groundwater SSLs: MCL-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"mcl"}},{"id":"f9723c1177e85a1c","parameter":"Chlordane (technical mixture)","value":"0.02","value_num":0.02,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:12789-03-6","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"9fa51f14f57dfb0c","parameter":"Chlordane","value":"0.002","value_num":0.002,"unit":"mg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:57-74-9","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level means the maximum permissible level of a contaminant in water which is delivered to any user of a public water system."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.61","page":null,"quote":null,"column":"mcl"}},{"id":"763189952be9728e","parameter":"Chlordane","value":"2.4","value_num":2.4,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:57-74-9","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":"Chlordane (P) 57749 2.4 0.0043 0.09 0.004 1980"}},{"id":"db07cfec5a71734d","parameter":"Chlordane","value":"0.0043","value_num":0.0043,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:57-74-9","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); 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