{"query":{"parameter":"nitrite","place":"US-PA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-PA","US"],"parameter_keys":["cas:14797-65-0","cas:71487-01-9","cas:109-95-5","cas:110-46-3","cas:542-56-3","name:nitrate and nitrite","cas:14797-55-8","name:nitrate-n + nitrite-n","name:nitrate + nitrite","name:nitrate + nitrite as n","name:nitrate+nitrite","name:nitrate/nitrite","name:nitrate/nitrite as n","name:nitrate plus nitrite","name:nitrate plus nitrite nitrogen","name:nitrite as n","cas:7632-00-0","name:nitrite - n","name:nitrite-n","name:nitrite + nitrate","name:nitrite+nitrate","name:nitrite plus nitrate","name:total nitrate and nitrite","name:total nitrate + nitrite","name:nitrates et nitrites","name:nitrates + nitrites","name:nitrates+nitrites"],"names_matched":[["nitrite","cas:14797-65-0"],["bis coconut oil alkyl dimethylammonium nitrite","cas:71487-01-9"],["ethyl nitrite","cas:109-95-5"],["isoamyl nitrite","cas:110-46-3"],["isobutyl nitrite","cas:542-56-3"],["nitrate and nitrite","name:nitrate and nitrite"],["nitrate and nitrite as n","name:nitrate and nitrite"],["nitrate as n criterion also applies to total nitrate nitrite","cas:14797-55-8"],["nitrate n nitrite n","name:nitrate-n + nitrite-n"],["nitrate nitrite","name:nitrate + nitrite"],["nitrate nitrite","name:nitrate + nitrite as n"],["nitrate nitrite","name:nitrate+nitrite"],["nitrate nitrite","name:nitrate/nitrite"],["nitrate nitrite","name:nitrate/nitrite as n"],["nitrate nitrite as n","name:nitrate + nitrite"],["nitrate nitrite as n","name:nitrate + nitrite as n"],["nitrate nitrite as n","name:nitrate+nitrite"],["nitrate nitrite as n","name:nitrate/nitrite"],["nitrate nitrite as n","name:nitrate/nitrite as n"],["nitrate nitrite as nitrogen","name:nitrate + nitrite"],["nitrate nitrite as nitrogen","name:nitrate + nitrite as n"],["nitrate nitrite as nitrogen","name:nitrate+nitrite"],["nitrate nitrite as nitrogen","name:nitrate/nitrite"],["nitrate nitrite as nitrogen","name:nitrate/nitrite as n"],["nitrate nitrite sum as nitrogen","name:nitrate + nitrite"],["nitrate nitrite sum as nitrogen","name:nitrate + nitrite as n"],["nitrate nitrite sum as nitrogen","name:nitrate+nitrite"],["nitrate nitrite sum as nitrogen","name:nitrate/nitrite"],["nitrate nitrite sum as nitrogen","name:nitrate/nitrite as n"],["nitrate plus nitrite","name:nitrate plus nitrite"],["nitrate plus nitrite as nitrogen n","name:nitrate plus nitrite"],["nitrate plus nitrite nitrogen","name:nitrate plus nitrite nitrogen"],["nitrite as n","name:nitrite as n"],["nitrite d ethyle","cas:109-95-5"],["nitrite d isoamyle","cas:110-46-3"],["nitrite de sodium","cas:7632-00-0"],["nitrite n","name:nitrite - n"],["nitrite n","name:nitrite-n"],["nitrite nitrate","name:nitrite + nitrate"],["nitrite nitrate","name:nitrite+nitrate"],["nitrite nitrate as n","name:nitrite + nitrate"],["nitrite nitrate as n","name:nitrite+nitrate"],["nitrite nitrate both as n","name:nitrite + nitrate"],["nitrite nitrate both as n","name:nitrite+nitrate"],["nitrite plus nitrate","name:nitrite plus nitrate"],["sodium nitrite","cas:7632-00-0"],["total nitrate and nitrite","name:total nitrate and nitrite"],["total nitrate and nitrite as nitrogen","name:total nitrate and nitrite"],["total nitrate nitrite","name:total nitrate + nitrite"],["dicoco alkyldimethyl ammonium nitrites","cas:71487-01-9","nitrites"],["nitrates et nitrites","name:nitrates et nitrites","nitrites"],["nitrates et nitrites n no2 et n no3","name:nitrates et nitrites","nitrites"],["nitrates nitrites","name:nitrates + nitrites","nitrites"],["nitrates nitrites","name:nitrates+nitrites","nitrites"],["nitrates nitrites exprimes en n","name:nitrates + nitrites","nitrites"],["nitrates nitrites exprimes en n","name:nitrates+nitrites","nitrites"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":34,"names":["Nitrate (as N)","NITRATE NITROGEN","Nitrate (measured as nitrogen)","Nitrate","Nitrates"],"says":"34 rows share a parameter key with a longer name holding \"nitrite\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"nitrite\" does not name (another substance, whatever words its name holds): not sent. 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Code ch. 250 Appendix A, Table 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (used aquifer, TDS ≤ 2500, R)","page":1,"quote":null}},{"id":"ab65e4b751586d3f","parameter":"NITRITE NITROGEN","value":"1000","value_num":1000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:14797-65-0","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 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (used aquifer, TDS ≤ 2500, NR)","page":1,"quote":null}},{"id":"901a822147d2828a","parameter":"NITRITE NITROGEN","value":"100000","value_num":100000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:14797-65-0","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 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (used aquifer, TDS > 2500, R)","page":1,"quote":null}},{"id":"3efd4e7af6b5f3c6","parameter":"NITRITE NITROGEN","value":"100000","value_num":100000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:14797-65-0","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 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (used aquifer, TDS > 2500, NR)","page":1,"quote":null}},{"id":"81ebc75c3db8bbd0","parameter":"NITRITE NITROGEN","value":"1000000","value_num":1000000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:14797-65-0","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. 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Code ch. 250 Appendix A, Table 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (nonuse aquifer, R)","page":1,"quote":null}},{"id":"e6110ad15089a8f8","parameter":"NITRITE NITROGEN","value":"1000000","value_num":1000000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:14797-65-0","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. 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Code ch. 250 Appendix A, Table 2 - Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater (nonuse aquifer, NR)","page":1,"quote":null}},{"id":"3121fe186a8685e7","parameter":"Nitrite plus Nitrate","value":"Maximum 10 mg/l as nitrogen.","value_num":10,"unit":"mg/L as N","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:nitrite plus nitrate","place":["US-PA"],"conditions":["critical use PWS (potable water supply): the designated or existing use the criterion protects (§93.7 Table 3)"],"cite":{"instrument":"us_pa_wqs","title":"25 Pa. Code §93.8c Table 5 (water quality criteria for toxic substances) and §93.7 Table 3 (specific water quality criteria) — Pennsylvania","issuer":"Commonwealth of Pennsylvania, Environmental Quality Board (Department of Environmental Protection)","edition":"Pennsylvania Code as served 2026-10-09: §93.8c amended December 19, 2025, effective December 20, 2025, 55 Pa.B. 8596; §93.7 rows name their own page","source_url":"https://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/025/chapter93/s93.8c.html","source_sha256":"9f8f9a0d4da400c55be6373f6a6482b24c4fab5c9a4d0c445f3f55c33a799beb","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"25 Pa. Code §93.7 Table 3 (N)","page":null,"quote":"Nitrite plus Nitrate N Maximum 10 mg/l as nitrogen. PWS"}},{"id":"1513f24213fb7545","parameter":"Nitrite","value":"1 (as Nitrogen)","value_num":1,"unit":"mg/l","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:14797-65-0","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level goals are nonenforceable health goals."],"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":"141.51, 141.62","page":null,"quote":null,"column":"mclg"}},{"id":"be974dcd13e20a4a","parameter":"Nitrite","value":"1 (as Nitrogen)","value_num":1,"unit":"mg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:14797-65-0","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":"141.51, 141.62","page":null,"quote":null,"column":"mcl"}},{"id":"60e77fb906d9c521","parameter":"Nitrite (measured as nitrogen)","value":"7800","value_num":7800,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:14797-65-0","place":["US"],"conditions":["Resident Soil (mg/kg)"],"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":"sols","column":"residentiel"}},{"id":"057c821e816780dd","parameter":"Nitrite (measured as nitrogen)","value":"120000","value_num":120000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:14797-65-0","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"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":"sols","column":"industriel"}},{"id":"4223d284947f2776","parameter":"Nitrite (measured as nitrogen)","value":"2000","value_num":2000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:14797-65-0","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":"ff236569b4a13740","parameter":"Nitrate/Nitrite","value":"2.0","value_num":2,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:nitrate/nitrite","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(3) Voluntary incentives plan. (i) For dischargers who voluntarily choose to meet the effluent limitations for FGD wastewater in this paragraph (g)(3)(i), the quantity of pollutants in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in table 7 to this paragraph (g)(3)(i). Dischargers who choose to meet the effluent…","table: Table 7 to Paragraph ( g )(3)( i )"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.13 (BAT)","page":null,"quote":"Nitrate/Nitrite (mg/L) 2.0 1.2"}},{"id":"bd56f70d10e7221f","parameter":"Nitrate/Nitrite","value":"1.2","value_num":1.2,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:nitrate/nitrite","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(3) Voluntary incentives plan. (i) For dischargers who voluntarily choose to meet the effluent limitations for FGD wastewater in this paragraph (g)(3)(i), the quantity of pollutants in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in table 7 to this paragraph (g)(3)(i). Dischargers who choose to meet the effluent…","table: Table 7 to Paragraph ( g )(3)( i )"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.13 (BAT)","page":null,"quote":"Nitrate/Nitrite (mg/L) 2.0 1.2"}},{"id":"ee7b591236c21357","parameter":"Nitrate/nitrite as N","value":"4","value_num":4,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:nitrate/nitrite as n","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(g) FGD wastewater —(1) 2020 BAT. (i) Except for those discharges to which paragraph (g)(2) or (3) of this section applies, the quantity of pollutants in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in table 5 to this paragraph (g)(1)(i). Dischargers must meet the effluent limitations for FGD wastewater in this …","table: Table 5 to Paragraph ( g )(1)( i )"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.13 (BAT)","page":null,"quote":"Nitrate/nitrite as N (mg/L) 4 3"}},{"id":"884b3043b1528c34","parameter":"Nitrate/nitrite as N","value":"3","value_num":3,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:nitrate/nitrite as n","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(g) FGD wastewater —(1) 2020 BAT. (i) Except for those discharges to which paragraph (g)(2) or (3) of this section applies, the quantity of pollutants in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in table 5 to this paragraph (g)(1)(i). Dischargers must meet the effluent limitations for FGD wastewater in this …","table: Table 5 to Paragraph ( g )(1)( i )"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.13 (BAT)","page":null,"quote":"Nitrate/nitrite as N (mg/L) 4 3"}},{"id":"53d6d195b2d1b594","parameter":"Nitrate/nitrite as N","value":"4","value_num":4,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:nitrate/nitrite as n","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","existing sources (PSES)","(e) FGD wastewater —(1) 2020 PSES. Except as provided for in paragraph (e)(2) of this section, for any electric generating unit with a total nameplate generating capacity of more than 50 megawatts, that is not an oil-fired unit, and that the owner has not certified that it will cease coal combustion pursuant to § 423.19(g), the quantity of pollutants in FGD wastewater shall not exceed the quant…","table: Table 3 to Paragraph (e)(1)"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.16 (PSES)","page":null,"quote":"Nitrate/nitrite as N (mg/L) 4 3"}},{"id":"2c560d831e162389","parameter":"Nitrate/nitrite as N","value":"3","value_num":3,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:nitrate/nitrite as n","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","existing sources (PSES)","(e) FGD wastewater —(1) 2020 PSES. Except as provided for in paragraph (e)(2) of this section, for any electric generating unit with a total nameplate generating capacity of more than 50 megawatts, that is not an oil-fired unit, and that the owner has not certified that it will cease coal combustion pursuant to § 423.19(g), the quantity of pollutants in FGD wastewater shall not exceed the quant…","table: Table 3 to Paragraph (e)(1)"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.16 (PSES)","page":null,"quote":"Nitrate/nitrite as N (mg/L) 4 3"}},{"id":"b096c4b022e2b10c","parameter":"Total Nitrate and Nitrite","value":"10 (as Nitrogen)","value_num":10,"unit":"mg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"name:total nitrate and nitrite","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":"141.62","page":null,"quote":null,"column":"mcl"}},{"id":"abfeca3a6d00b7f6","parameter":"Total Nitrate + Nitrite","value":"10 (as Nitrogen)","value_num":10,"unit":"mg/l","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"name:total nitrate + nitrite","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level goals are nonenforceable health goals."],"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":"141.51","page":null,"quote":null,"column":"mclg"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-PA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"nitrite\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-PA"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}