{"pcode":"77562","parm_nm":"1,1,1,2-Tetrachloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"630-20-6","srsname":"1,1,1,2-Tetrachloroethane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1747,"nsites":143}
{"pcode":"34506","parm_nm":"1,1,1-Trichloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"71-55-6","srsname":"1,1,1-Trichloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"34516","parm_nm":"1,1,2,2-Tetrachloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"79-34-5","srsname":"1,1,2,2-Tetrachloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2425,"nsites":213}
{"pcode":"77652","parm_nm":"1,1,2-Trichloro-1,2,2-trifluoroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"76-13-1","srsname":"CFC-113","unit_cd":"ug/L","min_dt":"1993-05-19","max_dt":"2023-09-13","nrecords":1669,"nsites":114}
{"pcode":"34511","parm_nm":"1,1,2-Trichloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"79-00-5","srsname":"1,1,2-Trichloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2393,"nsites":214}
{"pcode":"34496","parm_nm":"1,1-Dichloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-34-3","srsname":"1,1-Dichloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"34501","parm_nm":"1,1-Dichloroethene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-35-4","srsname":"1,1-Dichloroethylene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"77168","parm_nm":"1,1-Dichloropropene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"563-58-6","srsname":"1,1-Dichloropropene","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"77613","parm_nm":"1,2,3-Trichlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"87-61-6","srsname":"1,2,3-Trichlorobenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"77443","parm_nm":"1,2,3-Trichloropropane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"96-18-4","srsname":"1,2,3-Trichloropropane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1713,"nsites":123}
{"pcode":"34551","parm_nm":"1,2,4-Trichlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"120-82-1","srsname":"1,2,4-Trichlorobenzene","unit_cd":"ug/L","min_dt":"1989-02-28","max_dt":"2023-09-13","nrecords":1925,"nsites":174}
{"pcode":"77222","parm_nm":"1,2,4-Trimethylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"95-63-6","srsname":"1,2,4-Trimethylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1744,"nsites":142}
{"pcode":"82625","parm_nm":"1,2-Dibromo-3-chloropropane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"96-12-8","srsname":"1,2-Dibromo-3-chloropropane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"77651","parm_nm":"1,2-Dibromoethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"106-93-4","srsname":"Ethylene dibromide","unit_cd":"ug/L","min_dt":"1988-06-27","max_dt":"2023-09-13","nrecords":2022,"nsites":175}
{"pcode":"34536","parm_nm":"1,2-Dichlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"95-50-1","srsname":"o-Dichlorobenzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2310,"nsites":211}
{"pcode":"32103","parm_nm":"1,2-Dichloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"107-06-2","srsname":"1,2-Dichloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2509,"nsites":214}
{"pcode":"99832","parm_nm":"1,2-Dichloroethane-d4, surrogate, water, unfiltered, percent recovery","parm_group_nm":"Information","casrn":"17060-07-0","unit_cd":"%","min_dt":"1994-09-13","max_dt":"2016-05-17","nrecords":1248,"nsites":84}
{"pcode":"34541","parm_nm":"1,2-Dichloropropane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"78-87-5","srsname":"1,2-Dichloropropane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2216,"nsites":210}
{"pcode":"77226","parm_nm":"1,3,5-Trimethylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"108-67-8","srsname":"1,3,5-Trimethylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"34566","parm_nm":"1,3-Dichlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"541-73-1","srsname":"m-Dichlorobenzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2276,"nsites":210}
{"pcode":"77173","parm_nm":"1,3-Dichloropropane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"142-28-9","srsname":"1,3-Dichloropropane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"34571","parm_nm":"1,4-Dichlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"106-46-7","srsname":"p-Dichlorobenzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2309,"nsites":211}
{"pcode":"90576","parm_nm":"1-Bromo-3-chloropropane-d6, surrogate, water, unfiltered, percent recovery","parm_group_nm":"Information","casrn":"1173018-46-6","unit_cd":"%","min_dt":"2015-04-07","max_dt":"2023-09-13","nrecords":353,"nsites":81}
{"pcode":"99834","parm_nm":"1-Bromo-4-fluorobenzene, surrogate, NWQL VOC schedules, water, unfiltered, percent recovery","parm_group_nm":"Information","casrn":"460-00-4","unit_cd":"%","min_dt":"1994-09-13","max_dt":"2023-09-13","nrecords":1599,"nsites":113}
{"pcode":"77170","parm_nm":"2,2-Dichloropropane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"594-20-7","srsname":"2,2-Dichloropropane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"77275","parm_nm":"2-Chlorotoluene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"95-49-8","srsname":"o-Chlorotoluene","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"77277","parm_nm":"4-Chlorotoluene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"106-43-4","srsname":"p-Chlorotoluene","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":122}
{"pcode":"77356","parm_nm":"4-Isopropyltoluene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"99-87-6","srsname":"p-Cymene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"90410","parm_nm":"Acid neutralizing capacity, water, unfiltered, fixed endpoint (pH 4.5) titration, laboratory, milligrams per liter as calcium carbonate","parm_group_nm":"Inorganics, Major, Non-metals","srsname":"Alkalinity","unit_cd":"mg/L as CaCO3","min_dt":"1972-09-18","max_dt":"2017-10-25","nrecords":472,"nsites":230}
{"pcode":"00419","parm_nm":"Acid neutralizing capacity, water, unfiltered, inflection-point titration method (incremental titration method), field, milligrams per liter as calcium carbonate","parm_group_nm":"Inorganics, Major, Non-metals","srsname":"Alkalinity","unit_cd":"mg/L as CaCO3","min_dt":"2002-02-04","max_dt":"2024-01-23","nrecords":997,"nsites":102}
{"pcode":"34215","parm_nm":"Acrylonitrile, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"107-13-1","srsname":"Acrylonitrile","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1393,"nsites":109}
{"pcode":"01106","parm_nm":"Aluminum, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7429-90-5","srsname":"Aluminum","unit_cd":"ug/L","min_dt":"1961-12-19","max_dt":"2023-12-12","nrecords":1297,"nsites":257}
{"pcode":"29866","parm_nm":"Americium-241 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"14596-10-2","srsname":"Americium-241","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2007-10-24","nrecords":1275,"nsites":170}
{"pcode":"29865","parm_nm":"Americium-241, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"14596-10-2","srsname":"Americium-241","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2023-04-26","nrecords":1676,"nsites":224}
{"pcode":"00608","parm_nm":"Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen","parm_group_nm":"Nutrient","srsname":"Ammonia and ammonium","unit_cd":"mg/L as N","min_dt":"1971-09-14","max_dt":"2023-11-13","nrecords":5298,"nsites":245}
{"pcode":"01095","parm_nm":"Antimony, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7440-36-0","srsname":"Antimony","unit_cd":"ug/L","min_dt":"1994-03-14","max_dt":"2023-12-12","nrecords":957,"nsites":115}
{"pcode":"01000","parm_nm":"Arsenic, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7440-38-2","srsname":"Arsenic","unit_cd":"ug/L","min_dt":"1978-06-05","max_dt":"2023-12-12","nrecords":1245,"nsites":260}
{"pcode":"01002","parm_nm":"Arsenic, water, unfiltered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7440-38-2","srsname":"Arsenic","unit_cd":"ug/L","min_dt":"1950-04-17","max_dt":"2023-12-12","nrecords":987,"nsites":36}
{"pcode":"01005","parm_nm":"Barium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-39-3","srsname":"Barium","unit_cd":"ug/L","min_dt":"1968-08-29","max_dt":"2023-12-12","nrecords":1247,"nsites":269}
{"pcode":"01007","parm_nm":"Barium, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-39-3","srsname":"Barium","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":979,"nsites":35}
{"pcode":"34030","parm_nm":"Benzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"71-43-2","srsname":"Benzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"01010","parm_nm":"Beryllium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-41-7","srsname":"Beryllium","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-12-12","nrecords":1185,"nsites":222}
{"pcode":"01020","parm_nm":"Boron, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7440-42-8","srsname":"Boron","unit_cd":"ug/L","min_dt":"1949-01-16","max_dt":"2022-11-08","nrecords":363,"nsites":204}
{"pcode":"71870","parm_nm":"Bromide, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"24959-67-9","srsname":"Bromide","unit_cd":"mg/L","min_dt":"1952-12-18","max_dt":"2022-11-08","nrecords":844,"nsites":248}
{"pcode":"81555","parm_nm":"Bromobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"108-86-1","srsname":"Bromobenzene","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1713,"nsites":122}
{"pcode":"77297","parm_nm":"Bromochloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"74-97-5","srsname":"Halon 1011","unit_cd":"ug/L","min_dt":"1993-05-19","max_dt":"2023-09-13","nrecords":1683,"nsites":138}
{"pcode":"32101","parm_nm":"Bromodichloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-27-4","srsname":"Dichlorobromomethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2249,"nsites":211}
{"pcode":"34413","parm_nm":"Bromomethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"74-83-9","srsname":"Methyl bromide","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2199,"nsites":211}
{"pcode":"01025","parm_nm":"Cadmium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-43-9","srsname":"Cadmium","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-12-12","nrecords":1258,"nsites":262}
{"pcode":"01027","parm_nm":"Cadmium, water, unfiltered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-43-9","srsname":"Cadmium","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":985,"nsites":35}
{"pcode":"00915","parm_nm":"Calcium, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Metals","casrn":"7440-70-2","srsname":"Calcium","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1384,"nsites":287}
{"pcode":"49934","parm_nm":"Carbon-14 counting error, water, filtered, percent modern","parm_group_nm":"Radiochemical","casrn":"14762-75-5","srsname":"Carbon-14","unit_cd":"pct modern","min_dt":"2011-09-01","max_dt":"2016-11-08","nrecords":2,"nsites":2}
{"pcode":"49933","parm_nm":"Carbon-14, water, filtered, percent modern","parm_group_nm":"Radiochemical","casrn":"14762-75-5","srsname":"Carbon-14","unit_cd":"pct modern","min_dt":"2011-09-01","max_dt":"2016-11-08","nrecords":2,"nsites":2}
{"pcode":"28402","parm_nm":"Cesium-137 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10045-97-3","srsname":"Cesium-137","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2007-11-15","nrecords":3574,"nsites":228}
{"pcode":"28401","parm_nm":"Cesium-137, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10045-97-3","srsname":"Cesium-137","unit_cd":"pCi/L","min_dt":"1969-08-01","max_dt":"2023-11-14","nrecords":5505,"nsites":288}
{"pcode":"00940","parm_nm":"Chloride, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"16887-00-6","srsname":"Chloride","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":14165,"nsites":338}
{"pcode":"34301","parm_nm":"Chlorobenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"108-90-7","srsname":"Chlorobenzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2444,"nsites":214}
{"pcode":"34311","parm_nm":"Chloroethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-00-3","srsname":"Chloroethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2165,"nsites":210}
{"pcode":"34418","parm_nm":"Chloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"74-87-3","srsname":"Chloromethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2199,"nsites":211}
{"pcode":"01032","parm_nm":"Chromium(VI), water, filtered, micrograms per liter as Cr","parm_group_nm":"Inorganics, Minor, Metals","casrn":"18540-29-9","srsname":"Chromium(VI)","unit_cd":"ug/L as Cr","min_dt":"1964-05-26","max_dt":"2023-12-12","nrecords":1495,"nsites":202}
{"pcode":"01030","parm_nm":"Chromium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-47-3","srsname":"Chromium","unit_cd":"ug/L","min_dt":"1960-10-21","max_dt":"2023-12-12","nrecords":5890,"nsites":299}
{"pcode":"01034","parm_nm":"Chromium, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-47-3","srsname":"Chromium","unit_cd":"ug/L","min_dt":"1960-10-21","max_dt":"2023-12-12","nrecords":2777,"nsites":205}
{"pcode":"77093","parm_nm":"cis-1,2-Dichloroethene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"156-59-2","srsname":"cis-1,2-Dichloroethylene","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-11-14","nrecords":2057,"nsites":147}
{"pcode":"34704","parm_nm":"cis-1,3-Dichloropropene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"10061-01-5","srsname":"cis-1,3-Dichloropropene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2198,"nsites":211}
{"pcode":"01035","parm_nm":"Cobalt, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-48-4","srsname":"Cobalt","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-10-10","nrecords":724,"nsites":157}
{"pcode":"01040","parm_nm":"Copper, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-50-8","srsname":"Copper","unit_cd":"ug/L","min_dt":"1962-02-06","max_dt":"2023-12-12","nrecords":1053,"nsites":171}
{"pcode":"82081","parm_nm":"delta carbon-13/carbon-12, water, filtered, per mil","parm_group_nm":"Stable Isotopes","casrn":"14762-74-4","srsname":"Carbon-13/Carbon-12 ratio","unit_cd":"per mil","min_dt":"1981-06-05","max_dt":"2016-11-08","nrecords":103,"nsites":90}
{"pcode":"82082","parm_nm":"delta hydrogen-2/hydrogen-1, water, unfiltered, per mil","parm_group_nm":"Stable Isotopes","casrn":"7782-39-0","srsname":"Deuterium/Hydrogen ratio","unit_cd":"per mil","min_dt":"1981-06-05","max_dt":"2023-11-14","nrecords":322,"nsites":162}
{"pcode":"82085","parm_nm":"delta oxygen-18/oxygen-16, water, unfiltered, per mil","parm_group_nm":"Stable Isotopes","casrn":"14797-71-8","srsname":"Oxygen-18/Oxygen-16 ratio","unit_cd":"per mil","min_dt":"1981-06-05","max_dt":"2023-11-14","nrecords":322,"nsites":162}
{"pcode":"32105","parm_nm":"Dibromochloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"124-48-1","srsname":"Chlorodibromomethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2249,"nsites":211}
{"pcode":"30217","parm_nm":"Dibromomethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"74-95-3","srsname":"Dibromomethane","unit_cd":"ug/L","min_dt":"1992-02-19","max_dt":"2023-09-13","nrecords":1712,"nsites":123}
{"pcode":"34668","parm_nm":"Dichlorodifluoromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-71-8","srsname":"CFC-12","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2216,"nsites":210}
{"pcode":"34423","parm_nm":"Dichloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-09-2","srsname":"Methylene chloride","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2485,"nsites":212}
{"pcode":"00300","parm_nm":"Dissolved oxygen, water, unfiltered, milligrams per liter","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"7782-44-7","srsname":"Dissolved oxygen (DO)","unit_cd":"mg/L","min_dt":"1981-06-05","max_dt":"2024-01-23","nrecords":5107,"nsites":287}
{"pcode":"34371","parm_nm":"Ethylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"100-41-4","srsname":"Ethylbenzene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2509,"nsites":214}
{"pcode":"00950","parm_nm":"Fluoride, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"16984-48-8","srsname":"Fluoride","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-10-16","nrecords":1650,"nsites":300}
{"pcode":"63018","parm_nm":"Gross alpha radioactivity, water, unfiltered, Th-230 curve, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"12587-46-1","srsname":"Alpha particle","unit_cd":"pCi/L","min_dt":"2008-04-07","max_dt":"2023-06-28","nrecords":1364,"nsites":138}
{"pcode":"80049","parm_nm":"Gross beta radioactivity, water, unfiltered, Sr-90/Y-90 curve, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"12587-47-2","srsname":"Beta particle","unit_cd":"pCi/L","min_dt":"2008-04-07","max_dt":"2023-06-28","nrecords":1369,"nsites":138}
{"pcode":"00900","parm_nm":"Hardness, water, milligrams per liter as calcium carbonate","parm_group_nm":"Physical","srsname":"Total hardness -- SDWA NPDWR","unit_cd":"mg/L as CaCO3","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1380,"nsites":288}
{"pcode":"39702","parm_nm":"Hexachlorobutadiene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"87-68-3","srsname":"Hexachlorobutadiene","unit_cd":"ug/L","min_dt":"1989-02-28","max_dt":"2023-09-13","nrecords":1890,"nsites":158}
{"pcode":"29914","parm_nm":"Iodine-129 counting error, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"15046-84-1","srsname":"Iodine-129","unit_cd":"pCi/L","min_dt":"1986-08-04","max_dt":"2012-10-29","nrecords":196,"nsites":89}
{"pcode":"18502","parm_nm":"Iodine-129 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"15046-84-1","srsname":"Iodine-129","unit_cd":"pCi/L","min_dt":"1977-04-13","max_dt":"1981-10-06","nrecords":51,"nsites":35}
{"pcode":"29913","parm_nm":"Iodine-129, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"15046-84-1","srsname":"Iodine-129","unit_cd":"pCi/L","min_dt":"1986-08-04","max_dt":"2012-10-29","nrecords":240,"nsites":92}
{"pcode":"18501","parm_nm":"Iodine-129, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"15046-84-1","srsname":"Iodine-129","unit_cd":"pCi/L","min_dt":"1977-04-13","max_dt":"2022-06-30","nrecords":151,"nsites":77}
{"pcode":"01046","parm_nm":"Iron, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-89-6","srsname":"Iron","unit_cd":"ug/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1097,"nsites":279}
{"pcode":"77223","parm_nm":"Isopropylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"98-82-8","srsname":"Cumene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"01049","parm_nm":"Lead, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-92-1","srsname":"Lead","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-12-12","nrecords":1416,"nsites":284}
{"pcode":"01051","parm_nm":"Lead, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-92-1","srsname":"Lead","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":1185,"nsites":36}
{"pcode":"01130","parm_nm":"Lithium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-93-2","srsname":"Lithium","unit_cd":"ug/L","min_dt":"1978-06-05","max_dt":"2022-11-08","nrecords":304,"nsites":151}
{"pcode":"00925","parm_nm":"Magnesium, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Metals","casrn":"7439-95-4","srsname":"Magnesium","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1399,"nsites":291}
{"pcode":"01056","parm_nm":"Manganese, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-96-5","srsname":"Manganese","unit_cd":"ug/L","min_dt":"1950-02-03","max_dt":"2023-12-12","nrecords":1369,"nsites":275}
{"pcode":"71890","parm_nm":"Mercury, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-97-6","srsname":"Mercury","unit_cd":"ug/L","min_dt":"1978-06-05","max_dt":"2023-12-12","nrecords":1266,"nsites":255}
{"pcode":"71900","parm_nm":"Mercury, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-97-6","srsname":"Mercury","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":1180,"nsites":35}
{"pcode":"78032","parm_nm":"Methyl tert-butyl ether, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"1634-04-4","srsname":"Methyl tert-butyl ether","unit_cd":"ug/L","min_dt":"1993-05-19","max_dt":"2023-09-13","nrecords":1733,"nsites":138}
{"pcode":"01060","parm_nm":"Molybdenum, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7439-98-7","srsname":"Molybdenum","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-10-10","nrecords":631,"nsites":155}
{"pcode":"77342","parm_nm":"n-Butylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"104-51-8","srsname":"n-Butylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"77224","parm_nm":"n-Propylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"103-65-1","srsname":"n-Propylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1744,"nsites":142}
{"pcode":"34696","parm_nm":"Naphthalene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"91-20-3","srsname":"Naphthalene","unit_cd":"ug/L","min_dt":"1989-02-28","max_dt":"2023-11-14","nrecords":2184,"nsites":177}
{"pcode":"01065","parm_nm":"Nickel, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-02-0","srsname":"Nickel","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-12-12","nrecords":1039,"nsites":170}
{"pcode":"00631","parm_nm":"Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen","parm_group_nm":"Nutrient","srsname":"Inorganic nitrogen (nitrate and nitrite)","unit_cd":"mg/L as N","min_dt":"1971-05-21","max_dt":"2023-12-12","nrecords":6111,"nsites":297}
{"pcode":"00618","parm_nm":"Nitrate, water, filtered, milligrams per liter as nitrogen","parm_group_nm":"Nutrient","casrn":"14797-55-8","srsname":"Nitrate","unit_cd":"mg/L as N","min_dt":"1952-05-30","max_dt":"2023-12-12","nrecords":6427,"nsites":300}
{"pcode":"00620","parm_nm":"Nitrate, water, unfiltered, milligrams per liter as nitrogen","parm_group_nm":"Nutrient","casrn":"14797-55-8","srsname":"Nitrate","unit_cd":"mg/L as N","min_dt":"1949-01-16","max_dt":"2011-12-14","nrecords":347,"nsites":119}
{"pcode":"00613","parm_nm":"Nitrite, water, filtered, milligrams per liter as nitrogen","parm_group_nm":"Nutrient","casrn":"14797-65-0","srsname":"Nitrite","unit_cd":"mg/L as N","min_dt":"1981-12-14","max_dt":"2023-12-12","nrecords":6466,"nsites":295}
{"pcode":"00681","parm_nm":"Organic carbon, water, filtered, milligrams per liter","parm_group_nm":"Organics, Other","srsname":"Organic carbon","unit_cd":"mg/L","min_dt":"1988-09-26","max_dt":"2000-11-08","nrecords":69,"nsites":59}
{"pcode":"00680","parm_nm":"Organic carbon, water, unfiltered, milligrams per liter","parm_group_nm":"Organics, Other","srsname":"Organic carbon","unit_cd":"mg/L","min_dt":"1989-11-29","max_dt":"2023-11-15","nrecords":1652,"nsites":153}
{"pcode":"00671","parm_nm":"Orthophosphate, water, filtered, milligrams per liter as phosphorus","parm_group_nm":"Nutrient","casrn":"14265-44-2","srsname":"Phosphate","unit_cd":"mg/L as P","min_dt":"1971-05-21","max_dt":"2023-11-13","nrecords":5601,"nsites":284}
{"pcode":"00400","parm_nm":"pH, water, unfiltered, field, standard units","parm_group_nm":"Physical","srsname":"pH","unit_cd":"std units","min_dt":"1949-01-16","max_dt":"2024-01-23","nrecords":19432,"nsites":344}
{"pcode":"00403","parm_nm":"pH, water, unfiltered, laboratory, standard units","parm_group_nm":"Physical","srsname":"pH, lab","unit_cd":"std units","min_dt":"1962-06-21","max_dt":"2023-10-10","nrecords":2143,"nsites":297}
{"pcode":"22013","parm_nm":"Plutonium-238 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"13981-16-3","srsname":"Plutonium-238","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2007-10-24","nrecords":1298,"nsites":169}
{"pcode":"22012","parm_nm":"Plutonium-238, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"13981-16-3","srsname":"Plutonium-238","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2023-04-26","nrecords":1679,"nsites":213}
{"pcode":"49474","parm_nm":"Plutonium-239 plus plutonium-240 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","srsname":"Plutonium-239 and Plutonium-240 combined","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2007-10-24","nrecords":1259,"nsites":163}
{"pcode":"49475","parm_nm":"Plutonium-239 plus plutonium-240, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","srsname":"Plutonium-239 and Plutonium-240 combined","unit_cd":"pCi/L","min_dt":"1972-02-04","max_dt":"2023-04-26","nrecords":1643,"nsites":206}
{"pcode":"00935","parm_nm":"Potassium, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Metals","casrn":"7440-09-7","srsname":"Potassium","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1343,"nsites":282}
{"pcode":"71999","parm_nm":"Sample purpose, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"1995-09-13","max_dt":"2024-01-23","nrecords":674,"nsites":175}
{"pcode":"84164","parm_nm":"Sampler type, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2019-04-03","max_dt":"2024-01-23","nrecords":696,"nsites":170}
{"pcode":"00003","parm_nm":"Sampling depth, feet","parm_group_nm":"Information","unit_cd":"ft","min_dt":"1951-08-17","max_dt":"2023-06-28","nrecords":4730,"nsites":218}
{"pcode":"82398","parm_nm":"Sampling method, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"1972-01-20","max_dt":"2024-01-23","nrecords":22575,"nsites":326}
{"pcode":"77350","parm_nm":"sec-Butylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"135-98-8","srsname":"sec-Butylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1744,"nsites":142}
{"pcode":"01145","parm_nm":"Selenium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7782-49-2","srsname":"Selenium","unit_cd":"ug/L","min_dt":"1968-08-29","max_dt":"2023-12-12","nrecords":1035,"nsites":251}
{"pcode":"01147","parm_nm":"Selenium, water, unfiltered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Non-metals","casrn":"7782-49-2","srsname":"Selenium","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":986,"nsites":35}
{"pcode":"99931","parm_nm":"Set number, VOC analysis","parm_group_nm":"Information","unit_cd":"nu","min_dt":"1996-06-10","max_dt":"2002-03-14","nrecords":421,"nsites":50}
{"pcode":"00955","parm_nm":"Silica, water, filtered, milligrams per liter as SiO2","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"7631-86-9","srsname":"Silica","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2022-11-08","nrecords":926,"nsites":276}
{"pcode":"01075","parm_nm":"Silver, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-22-4","srsname":"Silver","unit_cd":"ug/L","min_dt":"1962-12-03","max_dt":"2023-12-12","nrecords":1249,"nsites":260}
{"pcode":"01077","parm_nm":"Silver, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-22-4","srsname":"Silver","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":1186,"nsites":35}
{"pcode":"00931","parm_nm":"Sodium adsorption ratio (SAR), water, number","parm_group_nm":"Inorganics, Major, Metals","srsname":"Sodium adsorption ratio","unit_cd":"None","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1298,"nsites":288}
{"pcode":"00932","parm_nm":"Sodium fraction of cations, water, percent in equivalents of major cations","parm_group_nm":"Inorganics, Major, Metals","srsname":"Sodium, percent total cations","unit_cd":"%","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":1360,"nsites":280}
{"pcode":"00930","parm_nm":"Sodium, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Metals","casrn":"7440-23-5","srsname":"Sodium","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":9428,"nsites":334}
{"pcode":"99101","parm_nm":"Source of blank solution, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2013-04-17","max_dt":"2024-01-23","nrecords":83,"nsites":43}
{"pcode":"90095","parm_nm":"Specific conductance, water, unfiltered, laboratory, microsiemens per centimeter at 25 degrees Celsius","parm_group_nm":"Physical","srsname":"Specific conductance","unit_cd":"uS/cm @25C","min_dt":"1962-04-10","max_dt":"2023-10-10","nrecords":6397,"nsites":312}
{"pcode":"00095","parm_nm":"Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius","parm_group_nm":"Physical","srsname":"Specific conductance","unit_cd":"uS/cm @25C","min_dt":"1949-01-16","max_dt":"2024-01-23","nrecords":20052,"nsites":344}
{"pcode":"01080","parm_nm":"Strontium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-24-6","srsname":"Strontium","unit_cd":"ug/L","min_dt":"1960-07-12","max_dt":"2022-11-08","nrecords":559,"nsites":257}
{"pcode":"75978","parm_nm":"Strontium-87/strontium-86, water, filtered, ratio","parm_group_nm":"Stable Isotopes","casrn":"13982-64-4","srsname":"Strontium-87/strontium-86, ratio","unit_cd":"ratio","min_dt":"2018-04-11","max_dt":"2019-06-13","nrecords":22,"nsites":22}
{"pcode":"13502","parm_nm":"Strontium-90 counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10098-97-2","srsname":"Strontium-90","unit_cd":"pCi/L","min_dt":"1972-07-15","max_dt":"2007-11-01","nrecords":5799,"nsites":226}
{"pcode":"13501","parm_nm":"Strontium-90, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10098-97-2","srsname":"Strontium-90","unit_cd":"pCi/L","min_dt":"1966-04-01","max_dt":"2023-11-14","nrecords":8109,"nsites":287}
{"pcode":"77128","parm_nm":"Styrene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"100-42-5","srsname":"Styrene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2249,"nsites":211}
{"pcode":"00945","parm_nm":"Sulfate, water, filtered, milligrams per liter","parm_group_nm":"Inorganics, Major, Non-metals","casrn":"14808-79-8","srsname":"Sulfate","unit_cd":"mg/L","min_dt":"1949-01-16","max_dt":"2023-12-12","nrecords":6200,"nsites":328}
{"pcode":"29967","parm_nm":"Technetium-99, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"14133-76-7","srsname":"Technetium-99","unit_cd":"pCi/L","min_dt":"2013-07-31","max_dt":"2013-09-25","nrecords":2,"nsites":2}
{"pcode":"00020","parm_nm":"Temperature, air, degrees Celsius","parm_group_nm":"Physical","srsname":"Temperature, air, deg C","unit_cd":"deg C","min_dt":"1973-02-21","max_dt":"2024-01-23","nrecords":5463,"nsites":269}
{"pcode":"00010","parm_nm":"Temperature, water, degrees Celsius","parm_group_nm":"Physical","srsname":"Temperature, water","unit_cd":"deg C","min_dt":"1949-01-16","max_dt":"2024-01-23","nrecords":23054,"nsites":345}
{"pcode":"77353","parm_nm":"tert-Butylbenzene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"98-06-6","srsname":"tert-Butylbenzene","unit_cd":"ug/L","min_dt":"1992-04-09","max_dt":"2023-09-13","nrecords":1710,"nsites":122}
{"pcode":"34475","parm_nm":"Tetrachloroethene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"127-18-4","srsname":"Tetrachloroethylene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2509,"nsites":214}
{"pcode":"32102","parm_nm":"Tetrachloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"56-23-5","srsname":"Carbon tetrachloride","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2509,"nsites":214}
{"pcode":"01057","parm_nm":"Thallium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-28-0","srsname":"Thallium","unit_cd":"ug/L","min_dt":"1989-11-29","max_dt":"2023-12-12","nrecords":889,"nsites":116}
{"pcode":"34010","parm_nm":"Toluene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"108-88-3","srsname":"Toluene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"99833","parm_nm":"Toluene-d8, surrogate, water, unfiltered, percent recovery","parm_group_nm":"Information","casrn":"2037-26-5","unit_cd":"%","min_dt":"1994-09-13","max_dt":"2023-09-13","nrecords":1599,"nsites":113}
{"pcode":"34546","parm_nm":"trans-1,2-Dichloroethene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"156-60-5","srsname":"trans-1,2-Dichloroethylene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2491,"nsites":212}
{"pcode":"34699","parm_nm":"trans-1,3-Dichloropropene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Pesticide","casrn":"10061-02-6","srsname":"trans-1,3-Dichloropropene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2198,"nsites":211}
{"pcode":"32104","parm_nm":"Tribromomethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-25-2","srsname":"Tribromomethane","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2249,"nsites":211}
{"pcode":"39180","parm_nm":"Trichloroethene, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"79-01-6","srsname":"Trichloroethylene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2510,"nsites":214}
{"pcode":"34488","parm_nm":"Trichlorofluoromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-69-4","srsname":"CFC-11","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2476,"nsites":213}
{"pcode":"32106","parm_nm":"Trichloromethane, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"67-66-3","srsname":"Chloroform","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2303,"nsites":214}
{"pcode":"90867","parm_nm":"Trihalomethanes, water, unfiltered, maximum summation, micrograms per liter","parm_group_nm":"Organics, Other","srsname":"TTHM4","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-09-13","nrecords":2249,"nsites":211}
{"pcode":"07006","parm_nm":"Tritium counting error, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10028-17-8","srsname":"Tritium","unit_cd":"pCi/L","min_dt":"1960-07-14","max_dt":"1985-01-10","nrecords":780,"nsites":67}
{"pcode":"07001","parm_nm":"Tritium counting error, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10028-17-8","srsname":"Tritium","unit_cd":"pCi/L","min_dt":"1962-05-28","max_dt":"2007-11-15","nrecords":11257,"nsites":255}
{"pcode":"07005","parm_nm":"Tritium, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10028-17-8","srsname":"Tritium","unit_cd":"pCi/L","min_dt":"1955-12-31","max_dt":"1989-07-13","nrecords":979,"nsites":73}
{"pcode":"07000","parm_nm":"Tritium, water, unfiltered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"10028-17-8","srsname":"Tritium","unit_cd":"pCi/L","min_dt":"1960-07-14","max_dt":"2023-11-14","nrecords":15738,"nsites":323}
{"pcode":"01155","parm_nm":"Tungsten, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-33-7","srsname":"Tungsten","unit_cd":"ug/L","min_dt":"2006-08-29","max_dt":"2022-11-08","nrecords":168,"nsites":79}
{"pcode":"63675","parm_nm":"Turbidity, water, unfiltered, broad band light source (400-680 nm), detection angle 90 +-30 degrees to incident light, nephelometric turbidity units (NTU)","parm_group_nm":"Physical","srsname":"Turbidity","unit_cd":"NTU","min_dt":"2001-11-05","max_dt":"2023-10-25","nrecords":960,"nsites":90}
{"pcode":"99102","parm_nm":"Type of blank sample, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2013-04-17","max_dt":"2024-01-23","nrecords":84,"nsites":43}
{"pcode":"99100","parm_nm":"Type of blank solution, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2013-04-17","max_dt":"2024-01-23","nrecords":81,"nsites":43}
{"pcode":"99111","parm_nm":"Type of quality assurance data associated with sample, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2013-04-03","max_dt":"2024-01-23","nrecords":1145,"nsites":212}
{"pcode":"99105","parm_nm":"Type of replicate, code","parm_group_nm":"Information","unit_cd":"code","min_dt":"2013-04-03","max_dt":"2024-01-23","nrecords":160,"nsites":131}
{"pcode":"22703","parm_nm":"Uranium (natural), water, filtered, micrograms per liter","parm_group_nm":"Radiochemical","casrn":"7440-61-1","srsname":"Uranium","unit_cd":"ug/L","min_dt":"1956-10-30","max_dt":"2023-10-10","nrecords":554,"nsites":103}
{"pcode":"22610","parm_nm":"Uranium-234, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"13966-29-5","srsname":"Uranium-234","unit_cd":"pCi/L","min_dt":"2006-04-13","max_dt":"2022-11-08","nrecords":75,"nsites":73}
{"pcode":"28013","parm_nm":"Uranium-234/uranium-238, water, filtered, ratio","parm_group_nm":"Radiochemical","unit_cd":"ratio","min_dt":"2018-04-11","max_dt":"2019-06-13","nrecords":22,"nsites":22}
{"pcode":"22620","parm_nm":"Uranium-235, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"15117-96-1","srsname":"Uranium-235","unit_cd":"pCi/L","min_dt":"2006-04-13","max_dt":"2021-07-14","nrecords":74,"nsites":72}
{"pcode":"22603","parm_nm":"Uranium-238, water, filtered, picocuries per liter","parm_group_nm":"Radiochemical","casrn":"7440-61-1","srsname":"Uranium","unit_cd":"pCi/L","min_dt":"2006-04-13","max_dt":"2022-11-08","nrecords":75,"nsites":73}
{"pcode":"01085","parm_nm":"Vanadium, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-62-2","srsname":"Vanadium","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2022-11-08","nrecords":252,"nsites":144}
{"pcode":"39175","parm_nm":"Vinyl chloride, water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"75-01-4","srsname":"Vinyl chloride","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2509,"nsites":214}
{"pcode":"81551","parm_nm":"Xylene (all isomers), water, unfiltered, recoverable, micrograms per liter","parm_group_nm":"Organics, Other","casrn":"1330-20-7","srsname":"Xylene","unit_cd":"ug/L","min_dt":"1987-06-03","max_dt":"2023-11-14","nrecords":2465,"nsites":213}
{"pcode":"01090","parm_nm":"Zinc, water, filtered, micrograms per liter","parm_group_nm":"Inorganics, Minor, Metals","casrn":"7440-66-6","srsname":"Zinc","unit_cd":"ug/L","min_dt":"1962-04-09","max_dt":"2023-12-12","nrecords":1057,"nsites":179}