# RDB # Dataset_Name: qw.std.voc.rdb # # This dataset or report is a product of the U.S. Geological Survey's # National Water-Quality Assessment (NAWQA) program. # # There is one row in the table for a given PCODE value. # # Basic documentation of dataset elements and history # # Attributes: PCODE, NAME, COMMON, MCL, AQCR, # MCLSRC, AQCRSRC, TBLGRP, UNITS, # CASNUM, COMPILER, DATE, COMMENTS # # # Attribute_Description: NWIS parameter code of the constituent # to be compared to the standard. This # is the unique, primary key to the table. # A five-digit code, including zeroes. # Attribute_Label: PCODE # # Attribute_Description: Constituent name. # Text, to appear in a table. # Attribute_Label: NAME # # Attribute_Description: Common or trade name(s) for constituent. # Multiple names are separated with a comma. # Text, to appear in a table. # Attribute_Label: COMMON # # Attribute_Description: EPA maximum contaminant level or health # advisory level (for contaminants in water) # or EPA recommended screening value (for # contaminants in fish). NOTE: These values # are not necessarily EPA-MCL values, see # MCLSRC. A numeric value in expressed in # UNITS. # Attribute_Label: MCL # # Attribute_Description: Chronic life-criteria for the # protection of aquatic life. # A numeric value in expressed in UNITS. # Attribute_Label: AQCR # # # Attribute_Description: Source of data for MCL attribute # A coded-text value, see below. # Attribute_Label: MCLSRC # Attribute_Domain_Values: MCL=EPA maximum contaminent level in # drinking-water # SMCL=EPA secondary maximum contaminent level # HAL=EPA health-advisory level, lifetime, # 70-kg adult, assumes consumption of 2 L # water per day over a 70 year lifetime # MCLG=maximum contaminent-level goal # RSD5=Risk-specific dose @ Level=10E-5 # RSD(Level=10E-5) = RSD(Level=10E-4) / 10. # for carcinogens only. # CAN=Canadian water-quality guidelines # SV=EPA recommended screening value, 70 kg # adult. Assumes average fish consumption (6.5 # grams of freshwater or estuarine fish per # day), 70 yr lifetime. # SV5=EPA recommended screening value @ risk # level=10E-5, 70 kg adult, for carcinogens # only. Assumes average fish consumption (6.5 # grams of freshwater or estuarine fish per # day), 70 yr lifetime. # # References: # # USEPA, 1995, Guidance for assessing # chemical contaminant data for use in # fish advisories, Volume 1, Fish sampling # and analysis, Second edition, Office of # Water, EPA 823-R-95-007, September, 1995. # # USEPA, 1996, Drinking water regulations # and health advisories, Office of water, # EPA 822-B-96-002, Wash.D.C., Oct., 1996. # # Canadian Council of Resource and # Environment Ministers, 1991, Canadian # water quality guidelines: Ottawa, Ontario, # Environment Canada, Inland Waters # Directorate, Water Quality Branch. # # Attribute_Description: Source of data for AQCR attribute. # A coded-text value, see below. # Attribute_Label: AQCRSRC # Attribute_Domain_Values: FCH=fresh-water chronic aquatic-life # USEPA, 1991, Water-quality criteria summary # Office of Water, Office of Science and Tech., # Health and Ecological Effects Division (poster) # NAS= # NAS/NAE, 1973[74], Water quality criteria # 1972: USEPA, EPA R3-73-033, 594 p. # NSI= # USEPA, 1996, The National Sediment Quality # Inventory: A report to Congress on the # extent and severity of sediment contamination # in surface waters of the US, 1st draft, # Office of Science and Tech., Wash.D.C., # EPA-823-D-96-002, July, 1996. # LOEL=Lowest Observed Effect Level # CAN=Canadian water-quality guidelines # # Attribute_Description: Table group of the constituent # A coded value, see below. # Attribute_Label: TBLGRP # Attribute_Domain_Values: 1=Herbicides, in water; # 2=Insecticides, in water; # 3=VOC's, in water; # 4=PAH's, Phthallates, and Phenols, in BST; # 5A=PCB's and OC pesticides in bed sediment; # 5B=PCB's and OC pesticides in fish & mollusk tissue; # 6A=Trace elements, in bed sediment; # 6B=Trace elements, in tissues; # 7=Nutrients, in water; # 8=Other, in water (TDS, for now) # # Attribute_Description: Units of the reference standards: MCL & AQCR # Units should be reported in a form directly # compareable to NWQL-reported measurements, # whenever possible. If these units are not # used, an explanation in COMMENT is required # A coded-text value, see below. # Attribute_Label: UNITS # Attribute_Domain_Values: mg/L=milligrams per liter # ug/L=micrograms per liter # mg/kg=milligrams per kilogram (ppm) # ug/kg=micrograms per kilogram # # Attribute_Description: Chemical Abstract Services registration number # OPTIONAL, separate multiple applicable CAS # numbers with commas. # Attribute_Label: CASNUM # # Attribute_Description: USGS userid of the compiler of this data row # A valid USGS-wide userid # Attribute_Label: COMPILER # # Attribute_Description: Date this row modified by COMPILER # A valid date, format: yyyy.mm.dd # Attribute_Label: DATE # # Attribute_Description: Comments about the row of data # Free text. # Attribute_Label: COMMENTS # ----------------------------------------------------------------- # Metadata_Reference_Information: # Metadata_Date: 10DEC96 # Metadata_Contact: sjryker, jon (see also: COMPILER) # # removed 49264 row because it is a surrogate 4/15/97 # Metadata_Standard_Name: # USGS-NAWQA Archive Recommended Standard for Tabular Metadata, based on # FGDC Content Standards for Digital Geospatial Metadata # Metadata_Standard_Version: 01MAR1996 # # Changed the following (10/02/1997) because of previous errors and a decision to use # an MCL where it exists: # Chloroethene (vinyl chloride) from a RSD5 of 1.5 ug/L to a MCL of # 2.0 ug/L 1,2-Dibromoethane (EDB) from a RSD5 of 0.04 ug/L to a MCL # of 0.05 ug/L 1,2,3-Trichloropropane from a RSD5 of 50 ug/L to a HA # of 40 ug/L Tribromomethane from a RSD5 of 40 ug/L to a MCL of 100 # ug/L Bromodichloromethane from a RSD5 of 6 ug/L to a MCL of 100 # ug/L 1,1,1,2-Tetrachloroethane from a HAL of 70 ug/L to a RSD5 of # 10 ug/L # Changed the following (12/12/1997) because of USEPA # released the Health Advisory for MTBE. Methyl tert-butyl # ether (MTBE) COMMENTS Range is now 20 - 40 ug/L. Documentation for # this change is "USEPA, 1997, Drinking water advisory: Consumer # Acceptabilty advice and health effects analysis on methyl # tertiary-butyl ether (MtBE): U.S. Environmental Protection Agency, # Office of Water, EPA-822-F-97-009, 34 pp." # Changed the following (01/09/1998) to reflect the MCL for total # trihalomethanes Added a row for the total trihalomethanes # (THM). Comments were added to the four trihalomethanes # (Bromodichloromethane, Dibromochloromethane, Trichloromethane # (Chloroform), and Tribromomethane (Bromoform)) to refer the user to # the trihalomethanes. # # END_OF_METADATA # ----------------------------------------------------------------- PCODE NAME COMMON MCL AQCR MCLSRC AQCRSR TBLGRP UNITS CASNUM COMPILE DATE COMMENTS 5S 38S 110S 10N.4 8N.6 5S 5S 2S 8S 15S 8S 10D 120S 77562 1,1,1,2-Tetrachloroethane 1,1,1,2-TeCA 10 RSD5 3 ug/L 630-20-6 pjsquill 10.02.1997 34506 1,1,1-Trichloroethane Methylchloroform 200 MCL 3 ug/L 71-55-6 pjsquill 12.12.1996 34516 1,1,2,2-Tetrachloroethane 3 79-34-5 pjsquill 12.12.1996 77652 1,1,2-Trichloro-1,2,2-trifluoroethane Freon 113, CFC 113 3 76-13-1 pjsquill 12.12.1996 34511 1,1,2-Trichloroethane Vinyl trichloride 5 MCL 3 ug/L 79-00-5 pjsquill 12.12.1996 34496 1,1-Dichloroethane Ethylidene dichloride 3 75-34-3 pjsquill 12.12.1996 34501 1,1-Dichloroethene Vinylidene chloride 7 MCL 3 ug/L 75-35-4 pjsquill 12.12.1996 77168 1,1-Dichloropropene 3 563-58-6 pjsquill 12.12.1996 77613 1,2,3-Trichlorobenzene 1,2,3-TCB 0.9 CAN 3 ug/L 87-61-6 pjsquill 03.12.1997 error found/fixed in CAN 77443 1,2,3-Trichloropropane Allyl trichloride 40 HAL 3 ug/L 96-18-4 pjsquill 10.02.1997 34551 1,2,4-Trichlorobenzene 70 0.5 MCL CAN 3 ug/L 120-82-1 pjsquill 03.12.1997 error found/fixed in CAN 77222 1,2,4-Trimethylbenzene Pseudocumene 3 95-63-6 pjsquill 12.12.1996 82625 1,2-Dibromo-3-chloropropane DBCP, Nemagon 0.2 MCL 3 ug/L 96-12-8 pjsquill 12.12.1996 77651 1,2-Dibromoethane Ethylene dibromide, EDB 0.05 MCL 3 ug/L 106-93-4 pjsquill 10.02.1997 34536 1,2-Dichlorobenzene o-Dichlorobenzene, 1,2-DCB 600 2.5 MCL CAN 3 ug/L 95-50-1 pjsquill 03.12.1997 error found/fixed in CAN 32103 1,2-Dichloroethane Ethylene dichloride 5 MCL 3 ug/L 107-06-2 pjsquill 04.02.1998 Dropped AQCR value 04/02/98 34541 1,2-Dichloropropane Propylene dichloride 5 MCL 3 ug/L 78-87-5 pjsquill 12.12.1996 77226 1,3,5-Trimethylbenzene Mesitylene 3 108-67-8 pjsquill 12.12.1996 34566 1,3-Dichlorobenzene m-Dichlorobenzene 600 2.5 HAL CAN 3 ug/L 541-73-1 pjsquill 04.02.1998 The HAL value for 1,3-Dichlorobenzene is based on data for 1,2-Dichlorobenzene. Fixed error in AQCR value 04/02/98. 77173 1,3-Dichloropropane Trimethylene dichloride 3 142-28-9 pjsquill 12.12.1996 34571 1,4-Dichlorobenzene p-Dichlorobenzene, 1,4-DCB 75 4 MCL CAN 3 ug/L 106-46-7 pjsquill 03.12.1997 error found/fixed in CAN 77275 1-Chloro-2-methylbenzene o-Chlorotoluene 100 HAL 3 ug/L 95-49-8 pjsquill 12.12.1996 77277 1-Chloro-4-methylbenzene p-Chlorotoluene 100 HAL 3 ug/L 106-43-4 pjsquill 12.12.1996 77170 2,2-Dichloropropane 3 594-20-7 pjsquill 12.12.1996 34030 Benzene 5 300 MCL CAN 3 ug/L 71-43-2 pjsquill 12.12.1996 81555 Bromobenzene Phenyl bromide 3 108-86-1 pjsquill 12.12.1996 77297 Bromochloromethane Methylene chlorobromide 10 HAL 3 ug/L 74-97-5 pjsquill 12.12.1996 32101 Bromodichloromethane Dichlorobromomethane 100 MCL 3 ug/L 75-27-4 pjsquill 01.09.1998 Total for all THMs combined cannont exceed the 100 ug/L level. See Trihalomethanes 34413 Bromomethane Methyl bromide 10 HAL 3 ug/L 74-83-9 pjsquill 12.12.1996 34301 Chlorobenzene Monochlorobenzene 100 15 MCL CAN 3 ug/L 108-90-7 pjsquill 03.12.1997 error found/fixed in CAN 34311 Chloroethane Ethyl chloride 3 75-00-3 pjsquill 12.12.1996 39175 Chloroethene Vinyl Chloride 2 MCL 3 ug/L 75-01-4 pjsquill 10.02.1997 34418 Chloromethane Methyl chloride 3 HAL 3 ug/L 74-87-3 pjsquill 12.12.1996 32105 Dibromochloromethane Dibromochloromethane 100 MCL 3 ug/L 124-48-1 pjsquill 01.09.1998 Total for all THMs combined cannont exceed the 100 ug/L level. See Trihalomethanes 30217 Dibromomethane Methylene dibromide 3 74-95-3 pjsquill 12.12.1996 34668 Dichlorodifluoromethane CFC 12, Freon 12 1000 HAL 3 ug/L 75-71-8 pjsquill 12.12.1996 34423 Dichloromethane Methylene chloride 5 98 MCL CAN 3 ug/L 75-09-2 pjsquill 03.12.1997 error found/fixed in CAN 81551 Dimethylbenzenes Xylenes (total) 10000 MCL 3 ug/L 1330-20-7 pjsquill 12.12.1996 77128 Ethenylbenzene Styrene 100 MCL 3 ug/L 100-42-5 pjsquill 12.12.1996 34371 Ethylbenzene Phenylethane 700 90 MCL CAN 3 ug/L 100-41-4 pjsquill 03.12.1997 updated CAN aquatic April 1996 39702 Hexachlorobutadiene 1 0.1 HAL CAN 3 ug/L 87-68-3 pjsquill 03.12.1997 error found/fixed in CAN 77223 Isopropylbenzene Cumene 3 98-82-8 pjsquill 12.12.1996 78032 Methyl tert-butyl ether MTBE 20 HAL 3 ug/L 1634-04-4 pjsquill 12.12.1997 standard varies from 20-40 34010 Methylbenzene Toluene 1000 2 MCL CAN 3 ug/L 108-88-3 pjsquill 03.12.1997 updated CAN AQCR April 96 34696 Naphthalene 20 HAL 3 ug/L 91-20-3 pjsquill 04.02.1998 Dropped AQCR value 04/02/98 34475 Tetrachloroethene Perchloroethene 5 110 MCL CAN 3 ug/L 127-18-4 pjsquill 12.12.1996 32102 Tetrachloromethane Carbon tetrachloride 5 13 MCL CAN 3 ug/L 56-23-5 pjsquill 03.12.1997 error found/fixed in CAN 32104 Tribromomethane Bromoform 100 MCL 3 ug/L 75-25-2 pjsquill 01.09.1998 Total for all THMs combined cannont exceed the 100 ug/L level. See Trihalomethanes 39180 Trichloroethene TCE 5 20 MCL CAN 3 ug/L 79-01-6 pjsquill 12.12.1996 34488 Trichlorofluoromethane CFC 11, Freon 11 2000 HAL 3 ug/L 75-69-4 pjsquill 12.12.1996 32106 Trichloromethane Chloroform 100 2 MCL CAN 3 ug/L 67-66-3 pjsquill 04.02.1998 Total for all THMs combined cannont exceed the 100 ug/L level. See Trihalomethanes. Added AQCR value 04/02/98. 77093 cis-1,2-Dichloroethene (Z)-1,2-Dichloroethene 70 MCL 3 ug/L 156-59-2 pjsquill 12.12.1996 34704 cis-1,3-Dichloropropene (Z)-1,3-Dichloropropene 2 RSD5 3 ug/L 10061-01-5 pjsquill 12.12.1996 77342 n-Butylbenzene 1-Phenylbutane 3 104-51-8 pjsquill 12.12.1996 77224 n-Propylbenzene Isocumene 3 103-65-1 pjsquill 12.12.1996 77356 p-Isopropyltoluene p-Cymene 3 99-87-6 pjsquill 12.12.1996 77350 sec-Butylbenzene 3 135-98-8 pjsquill 12.12.1996 77353 tert-Butylbenzene 3 98-06-6 pjsquill 12.12.1996 34546 trans-1,2-Dichloroethene (E)-1,2-Dichlorothene 100 MCL 3 ug/L 156-60-5 pjsquill 12.12.1996 34699 trans-1,3-Dichloropropene (E)-1,3-Dichloropropene 2 RSD5 3 ug/L 10061-02-6 pjsquill 12.12.1996 THM Total Trihalomethanes Trichloromethane (Chloroform), Dibromochloromethane, Bromodichloromethane, Tribromomethane (Bromoform) 100 MCL 3 ug/L pjsquill 01.09.1998 MCL is 100 ug/L for the total concentration of the four trihalomethanes (THMs) in drinking water