20220531
14101700
1.0
FGDC CSDGM Metadata
FALSE
ENV_ID305BStreams2_ExportFeature
002
2241685.162600
2745287.131800
1196917.871700
1982069.507800
1
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_Idaho_TM
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500000
5000
20230914
14573000
20230914
14573000
FGDC
Jim Szpara
Idaho DEQ
SR GIS Administrator
208 373-0502
1410 North Hilton
Boise
Idaho
83706
jim.szpara@deq.idaho.gov
8:00 - 5:00
20230914
ArcGIS Metadata
1.0
Idaho DEQ §305(b) Streams, Assessment Units, Waterbody ID's (2022 FINAL)
2022-05-02
Version 2 NHDPLus Version 2.2 - ATTAINS 2022 CYCLE
Jim Szpara
1410 North Hilton, Boise, Idaho, 83706
document
Idaho §305B Streams
2022 ATTAINS Cycle
Assessment Unit IDs Linear Referenced to NHDPlus ver 2.2 using the Hydrography Event Management Tool (HEM) http://www.epa.gov/waters/ir/attains_q_and_a.html https://www.ecfr.gov/cgi-bin/text-idx?SID=454a7b51118b27f20cef29ff071c1440&node=40:22.0.1.1.18&rgn=div5#se40.24.131_133 EPA Integrated Reporting (IR) Categories and How ATTAINS Calculates Them : https://www.epa.gov/sites/default/files/2018-09/documents/attains_calculations_of_epa_ir_categories_2018-08-31.pdf
Idaho Water Quality Standards
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Sections 305(b) and 314 of the Clean Water Act (CWA) require states, territories, and authorized tribes to provide biennial reports to EPA on the condition of waters within their boundaries. EPA regulations at 40 CFR 130.7 require states to provide biennial submissions of impaired waters lists. EPA provides guidance on these reports in a way that supports the Agency's strategy for achieving a broad-scale, national inventory of water quality conditions. The guidance is from EPA to states, territories, authorized tribes, and interstate commissions ("jurisdictions") to help states prepare and submit Section 305(b) reports to EPA. Use of the integrated report (IR) format provides jurisdictions a recommended reporting format and suggested content to be used in developing a single document that integrates the reporting requirements of Sections 303(d), 305(b), and 314. This format allows jurisdictions to report on the water quality standards attained for all waters, document the availability of data and information for each segment, identify certain trends in water quality conditions, and set priorities for protecting and restoring the health of the nation's aquatic resources. Section 305(b) of the Clean Water Act requires each state to conduct water quality surveys to determine a water body's overall health, including whether or not basic uses are being met. States, tribes, and other jurisdictions define appropriate uses for a waterbody and incorporate these uses into water quality standards that are approved by EPA. Water body uses include aquatic life protection, fish and shellfish production, drinking water supply, swimming, boating, fishing, and agricultural irrigation, among others. 2022 Final ID 305B Streams and Waterbodies.</SPAN></P></DIV></DIV></DIV>
Every two years, DEQ is required by the federal Clean Water Act to conduct a comprehensive analysis of Idaho's water bodies to determine whether they meet state water quality standards and support beneficial uses or if additional pollution controls are needed. This analysis is summarized in Idaho's Integrated Report from data derived from Idaho 305(b) Streams/Lakes, and DEQ's ATTAINS (Water Quality Assessment Database). The Clean Water Act protects and preserves water quality in the United States by protecting the uses designated for specific waterbodies. The results of the 305(b) assessments are not raw data but rather statements of the degree to which each water body supports the uses designated in state or tribal water quality standards. For example, two rivers may have the exact same chemical and physical makeup, but one of the rivers may be considered as impaired because of different water quality standards
Idaho DEQ,, EPA May 2022
Jim Szpara
Idaho DEQ
SR GIS Administrator
208 373-0502
1410 North Hilton
Boise
Idaho
83706
jim.szpara@deq.idaho.gov
8:00 - 5:00
Thea Wickersham
Idaho DEQ
Federal Reporting Coordinator
208 373-0153
1410 N Hilton
Boise
ID
83706
US
Thea.Wickershaml@deq.idaho.gov
8:00 - 5:00 PM
Thea Wichersham
Idaho DEQ
Federal Reporting Coordinator
208 373-0153
1410 N Hilton
Boise
Idaho
83706
US
Thea.Wickersham@deq.idaho.gov
8:00 - 5:00 MST
ISO 19115 Topic Categories
society
environment
health
biota
inlandWaters
geoscientificInformation
Integrated Report
AU's
WBAG
Water Quality
TMDLs
BURP
ATTAINS
Idaho DEQ
305B
Streams
NHD
Canal/Ditch
EPA Bull Trout FR (40 CFR 131.33)
ADB
Water quality Standards
State Government
Bull Trout Temperature Criteria
Assessment Units
Swamp/Marsh
Idaho GIS
Idaho
Stream/River
Environment
NHDPlus
Clean Water Act
Surface Water
Idaho State Rule:IDAPA 58.01.02.250.g.i)
Health
Idaho Dept of Environmental Quality
Beneficial Uses
303D
Impaired Waters
society
Integrated Report
AU's
WBAG
Water Quality
TMDLs
BURP
ATTAINS
Idaho DEQ
305B
Streams
NHD
Canal/Ditch
EPA Bull Trout FR (40 CFR 131.33)
ADB
Water quality Standards
State Government
Bull Trout Temperature Criteria
Assessment Units
Swamp/Marsh
Idaho GIS
environment
Idaho
Stream/River
Environment
health
NHDPlus
Clean Water Act
Surface Water
biota
inlandWaters
Idaho State Rule:IDAPA 58.01.02.250.g.i)
Health
Idaho Dept of Environmental Quality
geoscientificInformation
Beneficial Uses
303D
Impaired Waters
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Scale of NHDPlus (1:100,000), Time PeriodIdaho DEQ §305B Streams and Lakes do not represent a complete data set of hydrography for the State of Idaho, for a complete listing please refer to the USGS 24K-National Hydrography Dataset (NHD), or contact the Idaho Dept. of Water Resources for the most current datasets.Restriction of Liability: Neither the State of Idaho nor the Idaho Department of Environmental Quality, nor any of their employees make any warranty, express or implied, or assume any legal liability or responsibility for the accuracy, completeness or usefulness of any information or data provided. Metadata is provided for all data sets, and no data should be used without first reading and understanding its limitations. The data could include technical inaccuracies or typographical errors. The Department of Environmental Quality may update, modify, or revise the data used at any time, without notice.</SPAN></P></DIV></DIV></DIV>
Idaho Water Quality Standards
2
WBAG
http://www.fws.gov/r5gomp/gom/nhd-gom/NHDPLUS_UserGuide.pdf
Esri ArcGIS 13.1.2.41833
The State of Idaho.
2002-04-01
2015-03-24
-117.530943
-110.646807
41.92995
49.03949
The geospatial data sets included in NHDPlusV2 are intended to support a variety of water-related applications. They already have been used in an application to develop estimates of mean annual streamflow and velocity for each NHDFlowline feature in the conterminous United States. The results of these analyses are included with the NHDPlusV2 data. A water-quality model developed by the U.S. Geological Survey (USGS) called SPARROW (Spatially Referenced Regressions on Watershed Attributes), can utilize the NHDPlusV2 network functionality to track the downstream transport of nutrients, sediments, or other substances. NHDPlusV2 water bodies and estimates of streamflow and velocity are used in SPARROW to identify reservoir retention and in-stream loss factors. NHDPlusV2 climatic and land surface attributes can be used in SPARROW to identify potential factors in the delivery of nutrients from the land surface to streams. NHDPlusV2 data is also being used in select areas for a USGS Web-based application, called StreamStats. StreamStats provides tools to interactively select any point in the implemented areas, delineate watersheds, and to obtain streamflow and watershed characteristics for the selected point. NHDPlusV2 has been designed to accommodate many users' needs for future applications. NHDPlusV2 provides the framework and tools necessary to customize the behavior of the network relationships as well as building upon the attribute database, for which the user can assign their own data to the network.</purpose> For more information, refer to the NHDPlusV2 Users Guide. http://www.horizon-systems.com/NHDPlus/index.php EPA Bull Trout Federal Rule (40 CFR 131.33) Contains streams listed in 40 CFR 131.33 where the federal bull trout spawning and rearing temperature criterion of 10°C daily maximum temperature during June, July, August, and September applies. The GIS layer supports implementation of this rule for Clean Water Act purposes (e.g., TMDLs and permitting) until EPA withdraws this federal rule. The GIS layer may also be compared to the Idaho bull trout rule (IDAPA 58.01.02.250.02.g) to appropriately apply the most stringent criteria for Clean Water Act purposes. EPA used available data from the Interior Columbia Basin Ecosystem and Idaho Department of Fish and Game bull trout distribution database in 1997. The ICBEMP data included predicted presence of bull trout spawning and rearing. The IDFG data base provided known bull trout presence and suspected to be present based on IDFG best professional judgement. EPA excluded streams used only for life stages other than spawning and juvenile rearing (i.e., migratory corridors, adult rearing, etc.) n 1997, EPA disapproved Idaho’s bull trout temperature criteria and promulgated a rule on July 31, 1997 (See 62FR4116), establishing a federal bull trout spawning and rearing temperature criterion, and a list of where this criterion applied. EPA promulgated a 10°C daily maximum temperature criterion for June, July, August, and September for the waters on the list. This federal rule (40 CFR 131.33) applies for Clean Water Act purposes to the Idaho waters identified in this GIS layer until EPA withdraws the rule. The GIS layer is derived from NHD National Hydrography Dataset which was clipped to the State of Idaho. Fields were then appended to this new Idaho Streams layer to include the HUC's named at 40 CFR 131.33. Once the names of streams and HUCs were in the attribute table a SQL query was created based off 40 CFR 131.33. This would identify streams in the corresponding HUC listed in the register. Here is an example query selecting the field name of the stream with the corresponding HUC name. (GNIS_Name = 'Abandon Creek' And NAME = 'Priest') This would select Abandon Creek in the Priest watershed. https://www.law.cornell.edu/cfr/text/40/131.33 Idaho Bull Trout State Rule: IDAPA 58.01.02.250. This GIS layer shows the waters where the Idaho bull trout spawning and rearing temperature criteria apply under the State rule at IDAPA 58.01.02.250.g (Idaho Administrative Code). The Idaho bull trout spawning temperature criterion is 9°C MDAT during September and October and the juvenile bull trout rearing criterion is 13°C MWMT during June through August. Rather than identifying specific waterbodies, IDAPA 58.01.02.250.g.i. uses elevation delineations to broadly apply the bull trout temperature criteria to 1st through 4th-order streams above the specified elevations within 59 bull trout key watersheds. DEQ used analysis and guidance from Governor Batt’s State of Idaho Bull Trout Conservation Plan to identify waters in IDAPA 58.01.02.250.g.i. The GIS layer is derived from NHD National Hydrography Dataset which was clipped to the State of Idaho. The 59 key watersheds are from the list in Table 6, Appendix F of Governor Batt’s Idaho Bull Trout Conservation Plan (1996). Tributary waters, 1st through 4th-order, are selected above 1400 meters elevation south of the Salmon River basin-Clearwater River basin divide, and above 600 meters elevation north of the Salmon River basin- Clearwater River basin divide.https://casetext.com/regulation/idaho-administrative-code/title-idapa-58-environmental-quality-department-of/rule-580102-water-quality-standards/section-580102250-surface-water-quality-criteria-for-aquatic-life-use-designations
1
-117.530943
-110.646807
49.039490
41.929950
20240823
Complete for the State of Idaho's Watersheds.
NHDPlus is a suite of geospatial products that are derived from static snapshots of the National Hydrography Dataset (NHD) stream network (1:100,000-scale), Watershed Boundary Dataset (WBD) hydrologic units (12-digit), and National Elevation Dataset (NED) topography (30m) through a sophisticated data integration process. The NHD, WBD and NED are all maintained through USGS National Geospatial Program (NGP) led stewardship programs involving states and federal agencies. The derived components of NHDPlus are updated using the latest versions of the NHD, WBD and NED on a periodic basis, as determined by programmatic priorities and resources. For example, the production of NHDPlus Version 2 was largely driven by USGS Water Program requirements for improved regional water quality modeling capabilities. USGS Water and the EPA Office of Water worked together to update the NHD in preparation for NHDPlus Version 2 and, also, shared the cost for producing it. IdahoFederalBullTrout 1997 - USEPA Region 10. The U.S. Environmental Protection Agency (EPA) has compiled this computer representation from data or information sources that may not have been verified by the EPA. This data is offered here as a general representation only. The EPA does not guarantee the accuracy, completeness, or timeliness of the information shown, and shall not be liable for any loss or injury resulting from reliance upon the information shown. This GIS layer shows the waters where the Idaho bull trout spawning and rearing temperature criteria apply under the State rule at IDAPA 58.01.02.250.g (Idaho Administrative Code). The Idaho bull trout spawning temperature criterion is 9°C MDAT during September and October and the juvenile bull trout rearing criterion is 13°C MWMT during June through August. Rather than identifying specific waterbodies, IDAPA 58.01.02.250.g.i. uses elevation delineations to broadly apply the bull trout temperature criteria to 1st through 4th-order streams above the specified elevations within 59 bull trout key watersheds. DEQ used analysis and guidance from Governor Batt’s State of Idaho Bull Trout Conservation Plan to identify waters in IDAPA 58.01.02.250.g.i. The GIS layer is derived from NHD National Hydrography Dataset which was clipped to the State of Idaho. The 59 key watersheds are from the list in Table 6, Appendix F of Governor Batt’s Idaho Bull Trout Conservation Plan (1996). Tributary waters, 1st through 4th-order, are selected above 1400 meters elevation south of the Salmon River basin-Clearwater River basin divide, and above 600 meters elevation north of the Salmon River basin- Clearwater River basin divide.https://casetext.com/regulation/idaho-administrative-code/title-idapa-58-environmental-quality-department-of/rule-580102-water-quality-standards/section-580102250-surface-water-quality-criteria-for-aquatic-life-use-designations Attributes for Federal and State Bull Trout Temperature Criteria were transferred to the ID305B (1:100K) NHD Stream Layer using the ArcGIS 10.8.1 Attribute Transfer Tool. Lineage was visually inspected, verified, and corrected as needed.
100000
NHDPlus V2 100K linear referenced with Idaho DEQ Water Body Id's, linked to the EPA's Water Quality Database (ATTAINS) to report on the Status and quality of Idaho's Waters in support of the federal Clean Water Act.
0
ENV_ID305BStreams2_ExportFeature
Idaho 305b Stream Segments, Assessment Unit ID's, Waterbody ID's
WBAG - Idaho Dept of Environmental Quality
Feature Class
0
HUC4CODE
USGS 4th Field HUC Code, or Subbasin Code, Hydrologic Cataloging Unit (8 digit HUC)
USGS WATERBODIES
HUC4CODE
Integer
4
0
0
SR_BULL_TROUT
This GIS layer shows the waters where the Idaho bull trout spawning and rearing temperature criteria apply under the State rule at IDAPA 58.01.02.250.g (Idaho Administrative Code). The Idaho bull trout spawning temperature criterion is 9°C MDAT during September and October and the juvenile bull trout rearing criterion is 13°C MWMT during June through August. Rather than identifying specific waterbodies, IDAPA 58.01.02.250.g.i. uses elevation delineations to broadly apply the bull trout temperature criteria to 1st through 4th-order streams above the specified elevations within 59 bull trout key watersheds. DEQ used analysis and guidance from Governor Batt’s State of Idaho Bull Trout Conservation Plan to identify waters in IDAPA 58.01.02.250.g.i. The GIS layer is derived from NHD National Hydrography Dataset which was clipped to the State of Idaho. The 59 key watersheds are from the list in Table 6, Appendix F of Governor Batt’s Idaho Bull Trout Conservation Plan (1996). Tributary waters, 1st through 4th-order, are selected above 1400 meters elevation south of the Salmon River basin-Clearwater River basin divide, and above 600 meters elevation north of the Salmon River basin- Clearwater River basin divide.https://casetext.com/regulation/idaho-administrative-code/title-idapa-58-environmental-quality-department-of/rule-580102-water-quality-standards/section-580102250-surface-water-quality-criteria-for-aquatic-life-use-designations
EPA, IDEQ, IDF&G & Others
SR_BULL_TROUT
String
40
0
0
HUCCODE
Hydrologic Cataloging Unit (8 digit HUC) Historic HUC Code derrived from the Assessment Unit ID
IDEQ, USGS
HUCCODE
String
8
0
0
STRAHLER
The procedure is to stratify each WBID water body using land use and stream order criteria. DEQ uses the Strahler (Strahler 1957) method at the 1:100,000 scale to determine stream order.
NHDPlus ver 2.2
009
STRAHLER
Integer
4
0
0
TYPE
NHD Feature Type (consolidates Canal Types into one type.
IDEQ
011
TYPE
String
25
0
0
BASIN
Hydrologic sub-region (4 digit HUC NAME)
USGS
BASIN
String
12
0
0
DEQ_DATE
Date Data was last processed following the previous ADB/ATTAINS reporting Cycle.
IDEQ GIS
DEQ_DATE
Date
8
0
0
Shape
Feature geometry.
Esri
Coordinates defining the features.
Shape
Geometry
0
0
0
HUCNAME
Hydrologic Cataloging Unit (Subbasn Name)
USGS
HUCNAME
String
35
0
0
MERCURY
Mercury Imparied Waterbodies
ADB/ATTAINS
MERCURY
String
22
0
0
EPA_BT_97
This Column represents the streams listed at 40 CFR 131.33 where the federal bull trout spawning and rearing temperature criterion of 10°C daily maximum temperature during June, July, August, and September applies. The GIS layer supports implementation of this rule for Clean Water Act purposes (e.g., TMDLs and permitting) until EPA withdraws this federal rule. The GIS layer may also be compared to the Idaho bull trout rule (IDAPA 58.01.02.250.02.g) to appropriately apply the most stringent criteria for Clean Water Act purposes. EPA used available data from the Interior Columbia Basin Ecosystem and Idaho Department of Fish and Game bull trout distribution database in 1997. The ICBEMP data included predicted presence of bull trout spawning and rearing. The IDFG data base provided known bull trout presence and suspected to be present based on IDFG best professional judgement. EPA excluded streams used only for life stages other than spawning and juvenile rearing (i.e., migratory corridors, adult rearing, etc.) https://www.ecfr.gov/cgi-bin/text-idx?SID=454a7b51118b27f20cef29ff071c1440&node=40:22.0.1.1.18&rgn=div5#se40.24.131_133
EPA federal rule (40 CFR 131.33)
EPA_BT_97
String
22
0
0
CYCLE
ATTAINS Current Cycle for ID305B Reporting. (2022)
ATTAINS
CYCLE
Integer
4
0
0
DATALINK
Idaho DEQ Web Link to the ADB Status Report, Used in ArcGIS Server Applications.
IDEQ
DATALINK
String
145
0
0
CATEGORY5
Waters do not meet applicable water quality standards for one or more beneficial uses due to one or more pollutants; therefore, an EPA-approved TMDL is needed. Category 5 water bodies make up the §303(d) list.
Clean Water Act
CATEGORY5
String
20
0
0
SUPPORT
ATTAINS Support Status for water quality Fully Supporting - Water Quality Meets Idaho Standards for Beneficial Uses Not Supporting- Water Does not meet Water Quality Standards for Beneficial Uses Not Assessed - Waterbody has not been monitored or assessed by DEQ Tribal Waters n/A - Waterbodies are within Idaho Tribal Boundaries and have not been Assessed by DEQ
IDEQ Water Quality
SUPPORT
String
25
0
0
WB_NAME
Assessment Unit Name or description, identified in DEQ's ADB AND ATTAINS Databases.
IDEQ
WB_NAME
String
100
0
0
DEQ_ADM
Idaho DEQ Regional Offices areas of responsibility
IDEQ
DEQ_ADM
String
12
0
0
STATE
State of Idaho
IDEQ
011
STATE
String
2
0
0
SUPTYPE
Subtype for Displaying Support Status in ArcGIS
Idaho DEQ
SUPTYPE
Integer
4
0
0
CATEGORY4B
Waters have had pollution control requirements other than a TMDL placed on them, and these waters are reasonably expected to attain the water quality standard within a reasonable period of time
Clean Water Act
CATEGORY4B
String
6
0
0
CATEGORY4C
Waters failing to meet applicable water quality standards due to other types of pollution (e.g., flow alteration), not a pollutan
Clean Water Act
CATEGORY4C
String
6
0
0
CATEGORY3T
Waters are wholly or partially on Indian reservations and are not subject to the state's § 305(b)/§ 303(d) reporting requirements. Beneficial use attainment is not determined or reported for these waters.
Idaho DEQ
CATEGORY3T
String
6
0
0
WATERBODY
Waterbody Name or description as identified in Idaho DEQ Water Quality Standards: http://adminrules.idaho.gov/rules/current/58/0102.pdf
Idaho DEQ Waterbody ID, Designated Uses, Water Quality Standards
WATERBODY
String
184
0
0
CATEGORY2
Waters are fully supporting those beneficial uses that have been assessed. The use attainment of the remaining beneficial uses has not been determineddue to insufficient (or no) data and information.
Idaho DEQ
CATEGORY2
String
6
0
0
CATEGORY3
Waters have insufficient (or no) data and information to determine if beneficial uses are being attained or impaired. Category 3 has an additional subcategory
Clean Water Act
CATEGORY3
String
6
0
0
WEBLINK
Idaho DEQ web Link to the ATTAINS Status Report, used internally within ArcMap.
Idaho DEQ
WEBLINK
String
130
0
0
COMID
Common identifier of an NHD Flowline
NHDPlus Ver 2.2
009
COMID
Integer
4
0
0
ENTITY_ID
The Assessment Unit Id is stratified by Strahler Stream Order, DEQ combines first and second order streams with similar land uses. For land use, DEQ uses GIS capabilities and local knowledge to determine locations of land use and sources relative to stream segments. Presently, the most detailed and available information is the National Land Cover Data, which ncludes information regarding developed land, forested areas, and different agricultural uses. DEQ combines the first and second stream orders to improve the manageability of the stratification procedure since there are over 100,000 miles of streams in Idaho.
IDEQ, EPA ATTAINS DATABASE
20190117
009
ASSESSMENT UNIT ID
String
25
0
0
STREAM
USGS Stream Name, GNIS
USGS, EPA, NHDPLUS
009
STREAM NAME
String
60
0
0
ATTR_VAL
The Idaho WBID is a geo-referenced network of Idaho water bodies based on a combination of two hydrography scales: 1:100,000 and 1:250,000. Water bodies are coded according to a 1:250,000 hydrography and named based on a1:100,000 hydrography. Some water bodies were combined or split based on land use considerations. Canals (unless they follow a natural channel), stock ponds, and tailing ponds are not coded in the system. The numbering or coding system of the WBID is based on the USGS cataloging units in Idaho. USGS developed hydrologic unit codes (HUCs) as a national standard for water resources planning and data management. In the WBID, each cataloging unit (4th field HUC or 8-digit code) is numbered starting at the pour point. Figure 2-3 provides an example of the WBID system for HUCs.
IDEQ
009
WATERBODY ID
String
20
0
0
CATEGORY1
Waters are wholly within a designated wilderness or 2008 Idaho Roadless Rule “Wild Land Recreation” area and are presumed to be fully supporting all beneficial uses.
Idaho DEQ
CATEGORY1
String
6
0
0
ReachCode
USGS NHD Reach Code assigned to feature
NHDPlus v 2.2
011
ReachCode
String
14
0
0
CATEGORY
Idaho’s 2022 Integrated Report Idaho's waters are subdivided into assessment units (AUs). An AU is a group of similar stream segments within a water body unit with similar hydrology (e.g., Strahler stream order), land-use practices, ownership, or land management. DEQ assigns each AU to one or more reporting categories based on its water body assessment outcome. An AU may be impaired by multiple causes, and in some cases, may be listed in multiple impairment categories (i.e., Categories 4 and 5). Therefore, Category 4 and 5 listings are commonly referred to as AU-cause combinations. Five-part categorization results for Idaho’s streams and rivers (referred to as streams) and lakes and reservoirs (referred to as lakes) are presented in Table A and Table B, respectively.
Clean Water Act
CATEGORY
String
24
0
0
SCODE
Numeric codes for various feature attributes in the NHDFCode lookup table
NHDPlus
011
SCODE
Integer
4
0
0
ReachResolution
Always “Medium” Indicates 1:100,000 National Hydrography Data
NHDPlus
011
ReachResolution
String
6
0
0
CATEGORY4A
One or more designated uses are impaired or threatened* but establishment of a TMDL is not required because a state developed TMDL has been approved by EPA or a TMDL has been established by EPA for any water-pollutant combination.
EPA ATTAINS DATABASE
CATEGORY4A
String
20
0
0
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
0
0
ATTR_PRG
Identifier for Idaho 305(b) Streams
IDEQ
009
ATTR_PRG
String
6
0
0
STRMILES
Stream segment mileage, calculated by GIS
GIS Derived
STRMILES
Double
8
0
0
TRIBAL
Waterbodies within Idaho Tribal Boundaries, Assessment Units have been designated with a trailing 'T". Idaho DEQ does not report on these waters to the EPA.
IDEQ GIS Derrived
TRIBAL
String
22
0
0
SType
NHD Feature Type description
NHDPlus ver 2.2
011
SType
String
25
0
0
Fully Supporting
1
Not Assessed
0
Tribal Waters N/A
3
Not Supporting
2
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
File Geodatabase Feature Class
dataset
EPSG
9.5.1(10.8.0)
Simple
FALSE
0
TRUE
FALSE
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