{"query":{"parameter":"turbidity","place":"US-NC","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NC","US"],"parameter_keys":["name:turbidity","name:total suspended sediment or turbidity","name:turbidity increase"],"names_matched":[["turbidity","name:turbidity"],["total suspended sediment or turbidity","name:total suspended sediment or turbidity"],["turbidity increase","name:turbidity increase"],["turbidity increase ntu","name:turbidity increase"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":4,"offset":0,"returned":4,"next_offset":null,"rows":[{"id":"5db18e2c7c769688","parameter":"Turbidity","value":"50 NTU","value_num":50,"unit":"NTU","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:turbidity","place":["US-NC"],"conditions":["receiving_water is freshwater","fresh surface waters, Class C: the minimum for all freshwaters (15A NCAC 02B .0211); other freshwater classes add standards (.0212-.0231)","streams not designated as trout waters"],"cite":{"instrument":"us_nc_wqs","title":"15A NCAC 02B .0211, .0220 and .0208 — fresh (Class C) and tidal salt (Class SC) surface water quality standards, and human health standards for toxic substances (North Carolina)","issuer":"State of North Carolina, Environmental Management Commission (Department of Environmental Quality)","edition":".0211 readopted eff. November 1, 2019, amended eff. September 1, 2022; .0220 and .0208 as the Office of Administrative Hearings publishes them (fetched 2026-10-09)","source_url":"http://reports.oah.state.nc.us/ncac/title%2015a%20-%20environmental%20quality/chapter%2002%20-%20environmental%20management/subchapter%20b/15a%20ncac%2002b%20.0211.pdf","source_sha256":"71176dd337aaa95367f349105621e0b98c11cbe6b451ef41c03f054ff94352b8","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"15A NCAC 02B .0211(21)","page":4,"quote":"(21) Turbidity: the turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units (NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs designated as trout waters; for lakes and reservoirs not designated as trout waters, the turbidity shall not exceed 25 NTU;"}},{"id":"82f97db4a89ea624","parameter":"Turbidity","value":"10 NTU","value_num":10,"unit":"NTU","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:turbidity","place":["US-NC"],"conditions":["receiving_water is freshwater","fresh surface waters, Class C: the minimum for all freshwaters (15A NCAC 02B .0211); other freshwater classes add standards (.0212-.0231)","streams, lakes, or reservoirs designated as trout waters"],"cite":{"instrument":"us_nc_wqs","title":"15A NCAC 02B .0211, .0220 and .0208 — fresh (Class C) and tidal salt (Class SC) surface water quality standards, and human health standards for toxic substances (North Carolina)","issuer":"State of North Carolina, Environmental Management Commission (Department of Environmental Quality)","edition":".0211 readopted eff. November 1, 2019, amended eff. September 1, 2022; .0220 and .0208 as the Office of Administrative Hearings publishes them (fetched 2026-10-09)","source_url":"http://reports.oah.state.nc.us/ncac/title%2015a%20-%20environmental%20quality/chapter%2002%20-%20environmental%20management/subchapter%20b/15a%20ncac%2002b%20.0211.pdf","source_sha256":"71176dd337aaa95367f349105621e0b98c11cbe6b451ef41c03f054ff94352b8","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"15A NCAC 02B .0211(21)","page":4,"quote":"(21) Turbidity: the turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units (NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs designated as trout waters; for lakes and reservoirs not designated as trout waters, the turbidity shall not exceed 25 NTU;"}},{"id":"c3051b4eea144bb1","parameter":"Turbidity","value":"25 NTU","value_num":25,"unit":"NTU","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:turbidity","place":["US-NC"],"conditions":["receiving_water is freshwater","fresh surface waters, Class C: the minimum for all freshwaters (15A NCAC 02B .0211); other freshwater classes add standards (.0212-.0231)","lakes and reservoirs not designated as trout waters"],"cite":{"instrument":"us_nc_wqs","title":"15A NCAC 02B .0211, .0220 and .0208 — fresh (Class C) and tidal salt (Class SC) surface water quality standards, and human health standards for toxic substances (North Carolina)","issuer":"State of North Carolina, Environmental Management Commission (Department of Environmental Quality)","edition":".0211 readopted eff. November 1, 2019, amended eff. September 1, 2022; .0220 and .0208 as the Office of Administrative Hearings publishes them (fetched 2026-10-09)","source_url":"http://reports.oah.state.nc.us/ncac/title%2015a%20-%20environmental%20quality/chapter%2002%20-%20environmental%20management/subchapter%20b/15a%20ncac%2002b%20.0211.pdf","source_sha256":"71176dd337aaa95367f349105621e0b98c11cbe6b451ef41c03f054ff94352b8","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"15A NCAC 02B .0211(21)","page":4,"quote":"(21) Turbidity: the turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units (NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs designated as trout waters; for lakes and reservoirs not designated as trout waters, the turbidity shall not exceed 25 NTU;"}},{"id":"e39a30da307c563d","parameter":"Turbidity","value":"25 NTU","value_num":25,"unit":"NTU","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:turbidity","place":["US-NC"],"conditions":["receiving_water is marine","tidal salt waters, Class SC: the minimum for all saltwaters (15A NCAC 02B .0220); SB and SA add standards (.0221, .0222)"],"cite":{"instrument":"us_nc_wqs","title":"15A NCAC 02B .0211, .0220 and .0208 — fresh (Class C) and tidal salt (Class SC) surface water quality standards, and human health standards for toxic substances (North Carolina)","issuer":"State of North Carolina, Environmental Management Commission (Department of Environmental Quality)","edition":".0211 readopted eff. November 1, 2019, amended eff. September 1, 2022; .0220 and .0208 as the Office of Administrative Hearings publishes them (fetched 2026-10-09)","source_url":"http://reports.oah.state.nc.us/ncac/title%2015a%20-%20environmental%20quality/chapter%2002%20-%20environmental%20management/subchapter%20b/15a%20ncac%2002b%20.0211.pdf","source_sha256":"71176dd337aaa95367f349105621e0b98c11cbe6b451ef41c03f054ff94352b8","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"15A NCAC 02B .0220(19)","page":3,"quote":"(19) Turbidity: the turbidity in the receiving water shall not exceed 25 Nephelometric Turbidity Units (NTU);"}}],"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-NC"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"turbidity\", 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-NC"},"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"}]}