{"query":{"parameter":"tds","place":"US-NY","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NY","US"],"parameter_keys":["name:tds","name:total dissolved solids"],"names_matched":[["tds","name:tds"],["tds","name:total dissolved solids"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":17,"offset":0,"returned":17,"next_offset":null,"rows":[{"id":"cec345eb2b21b7e9","parameter":"Total dissolved solids","value":"shall not exceed 200 mg/L","value_num":200,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total dissolved solids","place":["US-NY"],"conditions":["receiving_water is freshwater","New York classes A-Special (6 NYCRR Part 701)"],"cite":{"instrument":"us_ny_wqs","title":"6 NYCRR 703.5 Table 1 water quality standards (as DEC TOGS 1.1.1 reprints them) and 703.3 pH, dissolved oxygen and dissolved solids (New York)","issuer":"State of New York, Department of Environmental Conservation","edition":"DEC Division of Water TOGS 1.1.1, reissued June 1998 (the 703.5 standards as revised effective March 12, 1998); 703.3 from 6 NYCRR Parts 700-706 as US EPA posts them in effect for CWA purposes (effective December 20, 2024)","source_url":"https://dec.ny.gov/docs/water_pdf/togs111.pdf","source_sha256":"090692f43a82280ffbf75751ecc52b94fc2d5c78996f9dc2483152343f8f4d59","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"6 NYCRR 703.3","page":82,"quote":"Dissolved solids A-Special Shall not exceed 200 mg/L."}},{"id":"682b03f57c0df423","parameter":"Total dissolved solids","value":"in no case shall it exceed 500 mg/L","value_num":500,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total dissolved solids","place":["US-NY"],"conditions":["receiving_water is freshwater","New York classes AA, A, B, C, AA-Special (6 NYCRR Part 701)"],"cite":{"instrument":"us_ny_wqs","title":"6 NYCRR 703.5 Table 1 water quality standards (as DEC TOGS 1.1.1 reprints them) and 703.3 pH, dissolved oxygen and dissolved solids (New York)","issuer":"State of New York, Department of Environmental Conservation","edition":"DEC Division of Water TOGS 1.1.1, reissued June 1998 (the 703.5 standards as revised effective March 12, 1998); 703.3 from 6 NYCRR Parts 700-706 as US EPA posts them in effect for CWA purposes (effective December 20, 2024)","source_url":"https://dec.ny.gov/docs/water_pdf/togs111.pdf","source_sha256":"090692f43a82280ffbf75751ecc52b94fc2d5c78996f9dc2483152343f8f4d59","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"6 NYCRR 703.3","page":82,"quote":"AA, A, B, C, Shall be kept as low as practicable AA-Special, GA to maintain the best usage of waters but in no case shall it exceed 500 mg/L."}},{"id":"7fcbc703e544b3d7","parameter":"TDS","value":"306","value_num":306,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tds","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":"TDS (mg/L) 306 149"}},{"id":"0847ec7b9bcedc86","parameter":"TDS","value":"149","value_num":149,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tds","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":"TDS (mg/L) 306 149"}},{"id":"1d4d5c4590b179b7","parameter":"TDS","value":"50","value_num":50,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tds","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(13) FGD wastewater. The quantity of pollutants discharged in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in the following table:"],"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 423.15 (NSPS)","page":null,"quote":"TDS (mg/L) 50 24"}},{"id":"9947e7acf5baa2bb","parameter":"TDS","value":"24","value_num":24,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tds","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(13) FGD wastewater. The quantity of pollutants discharged in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in the following table:"],"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 423.15 (NSPS)","page":null,"quote":"TDS (mg/L) 50 24"}},{"id":"f52e728b40e5a558","parameter":"TDS","value":"50","value_num":50,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:tds","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","new sources (PSNS)","(6) FGD wastewater. The quantity of pollutants discharged in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in the following table:"],"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 423.17 (PSNS)","page":null,"quote":"TDS (mg/L) 50 24"}},{"id":"81512f5088f616a6","parameter":"TDS","value":"24","value_num":24,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:tds","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","new sources (PSNS)","(6) FGD wastewater. The quantity of pollutants discharged in FGD wastewater shall not exceed the quantity determined by multiplying the flow of FGD wastewater times the concentration listed in the following table:"],"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 423.17 (PSNS)","page":null,"quote":"TDS (mg/L) 50 24"}},{"id":"a0a4aa5a390d294a","parameter":"Total dissolved solids","value":"38","value_num":38,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(j)(1)(i) Gasification wastewater. Except for those discharges to which paragraph (j)(2) of this section applies, the quantity of pollutants in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the table following this paragraph (j)(1)(i). Dischargers must meet the effluent limitations in this pa…"],"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":"Total dissolved solids (mg/L) 38 22"}},{"id":"6a7ce9955ba7d21f","parameter":"Total dissolved solids","value":"22","value_num":22,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(j)(1)(i) Gasification wastewater. Except for those discharges to which paragraph (j)(2) of this section applies, the quantity of pollutants in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the table following this paragraph (j)(1)(i). Dischargers must meet the effluent limitations in this pa…"],"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":"Total dissolved solids (mg/L) 38 22"}},{"id":"5f54419111d43303","parameter":"Total dissolved solids","value":"38","value_num":38,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(15) Gasification wastewater. The quantity of pollutants discharged in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the following table:"],"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 423.15 (NSPS)","page":null,"quote":"Total dissolved solids (mg/L) 38 22"}},{"id":"741ded8be58fd821","parameter":"Total dissolved solids","value":"22","value_num":22,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(15) Gasification wastewater. The quantity of pollutants discharged in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the following table:"],"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 423.15 (NSPS)","page":null,"quote":"Total dissolved solids (mg/L) 38 22"}},{"id":"32291ca65c23db2a","parameter":"Total dissolved solids","value":"38","value_num":38,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","existing sources (PSES)","(i) Gasification wastewater. For any electric generating unit with a total nameplate generating capacity of more than 50 megawatts and that is not an oil-fired unit, the quantity of pollutants in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the table following this paragraph (i). Dischargers…"],"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":"Total dissolved solids (mg/L) 38 22"}},{"id":"6d1466c807c1fbfa","parameter":"Total dissolved solids","value":"22","value_num":22,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","existing sources (PSES)","(i) Gasification wastewater. For any electric generating unit with a total nameplate generating capacity of more than 50 megawatts and that is not an oil-fired unit, the quantity of pollutants in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the table following this paragraph (i). Dischargers…"],"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":"Total dissolved solids (mg/L) 38 22"}},{"id":"0c7335b1db7189d8","parameter":"Total dissolved solids","value":"38","value_num":38,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","new sources (PSNS)","(9) Gasification wastewater. The quantity of pollutants discharged in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the following table:"],"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 423.17 (PSNS)","page":null,"quote":"Total dissolved solids (mg/L) 38 22"}},{"id":"283f2e4073891ddd","parameter":"Total dissolved solids","value":"22","value_num":22,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["route is sewer","cites is 40 CFR 423","new sources (PSNS)","(9) Gasification wastewater. The quantity of pollutants discharged in gasification wastewater shall not exceed the quantity determined by multiplying the flow of gasification wastewater times the concentration listed in the following table:"],"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 423.17 (PSNS)","page":null,"quote":"Total dissolved solids (mg/L) 38 22"}},{"id":"97602088892d6b04","parameter":"Total dissolved solids (TDS)","value":"500 mg/l","value_num":500,"direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"name:total dissolved solids","place":["US"],"conditions":["40 CFR 143.1: The regulations in this subpart are not Federally enforceable but are intended as guidelines for the States."],"cite":{"instrument":"us_nsdwr","title":"40 CFR Part 143 — National Secondary 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=143","source_sha256":"a98e8b66948f546c71e119055eff012e6380857a255ec216a4247b658bcf040d","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"143.3","page":null,"quote":null,"column":"smcl"}}],"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-NY"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"tds\", 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-NY"},"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"}]}