Final California 2010 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 1 - North Coast Region

Water Body Name:	Klamath River HU, Salmon River HA
Water Body ID:	CAR1052103419990610171042
Water Body Type:	River & Stream


DECISION ID	6822	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Temperature, water
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)(2006)
Revision Status	Revised
Sources:	Erosion/Siltation \| Logging Road Construction/Maintenance \| Mine Tailings \| Removal of Riparian Vegetation \| Silviculture
TMDL Name:	Salmon River Temperature
TMDL Project Code:	109
Date TMDL Approved by USEPA:	03/29/2006
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the Section 303(d) List under Sections 4.2 and 6.1.5.9 of the Listing Policy. Under Section 4.2, a minimum of one line of evidence is needed to assess listing status. Nine lines of evidence are available in the administrative record, however two of these lines of evidence were not incorporated into this decision for the reasons described below. Modeling data (LOEs 9130 and 7460) pertaining to landslide volumes and surface erosion values are not being incorporated in this decision as public comments pointed out that the modeling results were out-of-date. Newer modeling results will be considered as supporting evidence in the next listing cycle. Data show that the natural receiving water temperature of the Salmon River has been altered by human activities, as follows. (A) Exceedances of the evaluation guideline in the number of near-stream and valley bottom roads in the watershed (LOE 9121 and LOE 9128), and the amount of the watershed subject to human disturbance (LOE 9123 and 9129). These activities can reduce shade and increase sediment discharge resulting in increased stream temperatures. (B)In order to determine if water temperatures adversely affect salmonids, the most sensitive beneficial use in the watershed, temperature data was analyzed. Of the 26 MWMT values calculated, all 26 exceed the evaluation guideline. The guideline is a MWMT of 16 C for the protection of moderate to high density summertime salmon and trout juvenile rearing, per the "U.S. EPA Regional 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards" (USEPA 2003). Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the Section 303(d) List (i.e., the waterbody remains impaired). There is sufficient justification for placing it in the Being Addressed portion of the Section 303(d) List because a Temperature TMDL has been completed and approved by the Regional Water Board, has been established by the U.S. EPA, and it is expected to result in attainment of the standard. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) The natural receiving water temperature has been altered by human activities. At a minimum, 26 of 26 MWMT values exceed the U.S. EPA 16 C evaluation guideline used to determine an adverse affect on beneficial uses. This exceeds the temperature water quality objective more than the allowable frequency in Table 4.2 of the Listing Policy. (4) The Salmon River, Siskiyou County, California Total Maximum Daily Load for Temperature and Implementation Plan was adopted by the Regional Water Board on June 22, 2005, and established by the U.S. EPA on March 29, 2006. (5) Pursuant to Section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. In 2008, the "Klamath River Hydrologic Unit, Wooley Creek Hydrologic Sub-Area" was considered separately for delisting for temperature as data may indicate different conditions in the Wooley Creek Watershed.

Regional Board Decision Recommendation:	After review of the available data and information, North Coast RWQCB staff concludes that the water body-pollutant combination should not be removed from the Section 303(d) List because applicable water quality standards for the pollutant are being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1653

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

7461

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

The natural receiving water temperature of the North Fork Salmon River has been altered by human activities. This is demonstrated by exceedances of the evaluation guidelines in the number of near-stream and valley bottom roads (see LOE 9128), the amount of the watershed subject to human disturbance (see LOE 9129), and the estimated accelerated mass wasting and soil erosion from timber harvest, roads, and wildfire (see LOE 9130). Activities that remove or reduce shade-producing vegetation, or that result in a discharge of sediment to a stream, can increase stream temperatures. In order to determine if water temperatures adversely affect salmonids, the most sensitive beneficial use in the North Fork Salmon River, temperature data were analyzed. Of the 18 MWMT values calculated from near-continuous summertime temperature samples collected in the North Fork Salmon River, all 18 exceed the evaluation guideline. MWMT values range from 16.1 to 26.4 C. Data are summarized by the Klamath National Forest (KNF 2008).

Data Reference:

Stream Temperatures, Klamath River Basin. Includes data for Thompson Creek, Grider Creek, Clear Creek, Wooley Creek, North Fork Salmon River, and South Fork Salmon River

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Per the Basin Plan (NCRWQCB 2007): The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses. At no time or place shall the temperature of any COLD water be increased by more than 5 F above natural receiving water temperature.

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

If the natural receiving water temperature has been altered, or if alternation is unknown, the evaluation guideline to determine adverse affect on the most sensitive beneficial use (in this case, salmonids) is as follows. Per "U.S. EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards" (USEPA 2003), the U.S. EPA recommends a criterion for the protection of moderate to high density summertime salmon and trout juvenile rearing (i.e., core juvenile rearing) of a maximum weekly maximum temperature (MWMT) of 16 degrees C. The MWMT is also known as the maximum 7-day average of daily maximums (7DADM). The 16 degrees C MWMT criterion is recommended to (1) safely protect juvenile salmon and trout from lethal temperatures; (2) provide upper optimal conditions for juvenile growth under limited food during the period of summer maximum temperatures and optimal temperatures for other times of the growth season; (3) avoid temperatures where juvenile salmon and trout are at a competitive disadvantage with other fish; (4) protect against temperature induced elevated disease rates; and (5) provide temperatures that studies show juvenile salmon and trout prefer and are found in high densities.

Guideline Reference:

EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. U.S. Environmental Protection Agency Region 10 Office of Water, Seattle, WA.

Spatial Representation:

Temperature samples were collected from 7 locations in the mainstem North Fork Salmon River as follows: (1) 200 yards upstream of Mule Bridge; (2) 200 yards downstream of Mule Bridge; (3) at Rattlesnake Gulch; (4) below the junction with Kelly Gulch; (5) at the Little North Fork Salmon River; (6) at the junction with Big Creek; and (7) upstream of Forks of Salmon.

Temporal Representation:

Temperature samples were collected (1) upstream of Mule Bridge from early July to early November 2000, from early July to early December 2004, and from mid-March to mid-October 2006; (2) downstream of Mule Bridge from early June to early November 2001, and from late May to late November 2002; (3) at Rattlesnake Gulch from late May to early October 1999; (4) below Kelly Gulch from mid-July to mid-November 1999, and from early July through September 2000; (5) at the Little North Fork Salmon River from early June to mid-November 1999, and from mid-July to late October 2006; (6) from mid-July to mid-September 2002; and (7) upstream of Forks of Salmon from mid-May to late October 1997, from mid-July to mid-November 1999, from early July to early November 2000, from early June to mid-October 2001, from late May to mid-November 2002, from early July to late November 2004, and from late June through September 2006.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to the temperature data.

QAPP Information:

Temperature data was collected in accordance with the quality assurance guidelines described by Schuyler (2008).

QAPP Information Reference(s):

Memorandum from John Schuyler, Klamath Nation Forest, to Rebecca Fitzgerald, North Coast Regional Water Quality Control Board, Regarding the 303(d) DeListing Request

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9125

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

The natural receiving water temperature of the Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River) has been altered by human activities. This is demonstrated by exceedances of the evaluation guidelines in the number of near-stream and valley bottom roads in the watershed (see LOE 9121), the amount of the watershed subject to human disturbance see LOE 9123), and the estimated accelerated mass wasting and soil erosion from timber harvest, roads, and wildfire (see LOE 7460). Activities that remove or reduce shade-producing vegetation, or that result in a discharge of sediment to a stream, can increase stream temperatures. In order to determine if water temperatures adversely affect salmonids, which are the most sensitive beneficial use in the Upper South Fork Salmon River, temperature data were analyzed. Of the 8 MWMT values calculated from near-continuous summertime temperature samples collected in the Upper South Fork Salmon River, all 8 exceed the evaluation guideline. MWMT values range from 18.8 to 25.2 C. Data are summarized by the Klamath National Forest (KNF 2008).

Data Reference:

Stream Temperatures, Klamath River Basin. Includes data for Thompson Creek, Grider Creek, Clear Creek, Wooley Creek, North Fork Salmon River, and South Fork Salmon River

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. U.S. Environmental Protection Agency Region 10 Office of Water, Seattle, WA.

Spatial Representation:

Temperature samples were collected from 3 locations in the mainstem South Fork Salmon River as follows: (1) 1/4 mile upstream from the East Fork South Fork Salmon River; (2) at Petersburg; and (3) at Big Flat.

Temporal Representation:

Temperature samples were collected (1) 1/4 mile upstream from the East Fork South Fork Salmon River from October 1990 to September 1991, and from mid-May 1997 to mid-October 1997; (2) at Petersburg from mid-June 1999 to mid-November 1999, from early June 2001 to early November 2001, from late May 2002 to late November 2002, and from late June 2006 to mid-October 2006; and (3) at Big Flat from mid-July 2004 through September 2004, and from early April 2006 to mid-October 2006.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

Temperature data were collected in accordance with the quality assurance guidelines described by Schuyler (2008).

QAPP Information Reference(s):

Memorandum from John Schuyler, Klamath Nation Forest, to Rebecca Fitzgerald, North Coast Regional Water Quality Control Board, Regarding the 303(d) DeListing Request

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9128

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

Per the Klamath National Forest (KNF 2000), the road density in the North Fork Salmon River Watershed is 1.03 mi / sq. mi. Of the 210 total miles of road in the 130,394 acre watershed, 76.4 mi of road are located within 105 m of a stream (KNF 2000). The exceedance of the evaluation guideline is due to the significant number of road miles located near stream channels and in valley bottoms.

Data Reference:

Attachment E: Roads & Hydrologic Connectivity. Northern California Province Category 1 watersheds meeting "management-constrained" criteria. March 2000

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

The density of roads within a watershed can impact water temperature and alter natural conditions. Near-stream roads that run parallel to a waterbody do not allow for vegetation to grow and produce shade. Roads are also a major source of erosion and sedimentation on most managed forest lands. Excess sediment in the stream channel can result in higher water temperatures as pools fill in with sediment and channels widen in response to the increased load. Per NOAA Fisheries (1996), the guideline for the properly functioning condition for road density and location is less than 2 miles of road per square mile of watershed with no valley bottom roads.

Guideline Reference:

Making Endangered Species Act Determinations of Effect for Individual or Group Actions at the Watershed Scale. Prepared by the National Oceanic and Atmospheric Administration National Marine Fisheries Service Environmental and Technical Services Division Habitat Conservation Branch

Spatial Representation:

Road density and location information were assessed for the entire North Fork Salmon River Watershed.

Temporal Representation:

The road density and location data from the Klamath National Forest is current as of early 2000.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

Model results were calculated as part of the Equivalent Roaded Area (ERA) Model conducted by staff of the Klamath National Forest in accordance with the procedures described by Elder and Reichert (2004).

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9130

Pollutant:

Sediment

LOE Subgroup:

Adverse Biological Responses

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

MODELING

Data Used to Assess Water Quality:

None of the 2 model results (for landslide volumes and from surface erosion volumes) in the North Fork Salmon River Watershed exceed the evaluation guidelines. Estimated accelerated mass wasting and soil erosion from timber harvest, roads, and wildfire account for a 126% and 145% increase above background respectively in sediment production. Models were interpreted by staff of the Klamath National Forest. Results are summarized by Boland (2001, Attachment F).

Data Reference:

Attachment F: Supporting Narrative for Upslope, Channel and Habitat-associated Criteria (1-9) Rating Rationale. Klamath National Forest's Northern Province Category 1 Watersheds which meet "management-constrained" criteria

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Per the Basin Plan (NCRWQCB 2007): The suspended sediment load and suspended sediment discharge rate of surface waters shall not be altered in such a manner as to cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Per the "Quantitative Models for Surface Erosion, Mass-Wasting and ERA/TOC" (Elder & Reichert 2004): Landslide/mass-wasting volumes of 200% over background conditions as computed by the USFS Mass Wasting Model, and surface erosion volumes of 400% over background conditions as computed by the USFS Universal Soil Loss Equation Model, indicate the inference point where the risk of initiating or contributing to existing adverse cumulative watershed impacts (including impacts from excess sediment discharges) becomes a cause for concern.

Guideline Reference:

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Spatial Representation:

The Klamath National Forest models are specific to the North Fork Salmon River watershed.

Temporal Representation:

Data from the Klamath National Forest models were finalized in 1998.

Environmental Conditions:

Most of the modeled sediment increase from the Klamath National Forest models is associated with intense wildfires in 1977 and 1987 (Boland 2001, Attachment F). Otherwise, there are no known environmental conditions (e.g., seasonality, land use practices, storms, etc.) that are related to these data.

QAPP Information:

Model results were calculated as part of the Universal Soil Loss Equation Model and GEO Mass Wasting Model conducted by staff of the Klamath National Forest in accordance with the procedures described by Elder and Reichert (2004).

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

7460

Pollutant:

Sediment

LOE Subgroup:

Adverse Biological Responses

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

MODELING

Data Used to Assess Water Quality:

None of the 2 model results (for landslide volumes and from surface erosion volumes) in the Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River) exceed the evaluation guidelines. Estimated accelerated mass wasting from timber harvest, roads, and wildfire account for a 49% increase above background respectively in sediment production. Estimated accelerated soil erosion from timber harvest, roads, and wildfire account for a 217% increase above background respectively in sediment production. Models were interpreted by staff of the Klamath National Forest. Results are summarized by Boland (2001, Attachment F).

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Spatial Representation:

The Klamath National Forest models are specific to the Upper South Fork Salmon River watershed.

Temporal Representation:

Data from the Klamath National Forest models were finalized in 1998.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9123

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

More than 15% of the Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River) is subject to disturbance by human activities. Per the Klamath National Forest (KNF 2001, Attachment F), 40% of the watershed is a congressionally designated Wilderness Area. An additional 25% of the lands are managed as late-successional reserves, which limits management activities to those which promote old-growth habitat. Less than 1% of the watershed is privately owned. This leaves, at a minimum, 35% to 36% of the watershed subject to disturbance activities.

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Human disturbance within a watershed can impact water temperature and alter natural conditions. Activities that remove or reduce shade-producing vegetation, or that result in a discharge of sediment to a stream, can increase stream temperatures. Per NOAA Fisheries (1996), the guideline for the properly functioning condition for disturbance history is for the entire watershed to be less than 15% disturbed with no concentration of disturbance in (1) unstable areas, (2) potentially unstable areas, (3) refugia, and/or (4) riparian areas. For areas under the Northwest Forest Plan (which includes the Upper South Fork Salmon River watershed), the guideline for the properly functioning condition for disturbance history is also for there to be at least 15% retention of late succession and old growth forest in the watershed.

Guideline Reference:

Spatial Representation:

The disturbance and land use information was assessed for the entire Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River).

Temporal Representation:

The disturbance and land use information from the Klamath National Forest is current as of 2001.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

Land use information was generated from GIS-based data sources of high quality and resolution.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9121

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

Per the Klamath National Forest (KNF 2000), the road density in the Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River) is 1.24 mi / sq. mi. Of the 230 total miles of road in the 118,390 square mile watershed, 91.1 mi of road are located within 105 m of a stream (KNF 2000). The exceedance of the evaluation guideline is due to the significant number of road miles located near stream channels and in valley bottoms.

Data Reference:

Attachment E: Roads & Hydrologic Connectivity. Northern California Province Category 1 watersheds meeting "management-constrained" criteria. March 2000

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Road density and location information were assessed for the entire Upper South Fork Salmon River Watershed.

Temporal Representation:

The road density and location data from the Klamath National Forest is current as of early 2000.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 6822, Temperature, water	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9129

Pollutant:

Temperature, water

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

More than 15% of the North Fork Salmon River Watershed is subject to disturbance by human activities. Per the Klamath National Forest (KNF 2001, Attachment F), 42% of the watershed is a congressionally designated Wilderness Area. An additional 25% of the lands are managed as late-successional reserves, which limits management activities to those which promote old-growth habitat. Less than 1% of the watershed is privately owned. This leaves, at a minimum, 32% to 33% of the watershed subject to disturbance activities.

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The disturbance and land use information was assessed for the entire North Fork Salmon River Watershed.

Temporal Representation:

The disturbance and land use information from the Klamath National Forest is current as of 2001.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

Land use information was generated from GIS-based data sources of high quality and resolution.

QAPP Information Reference(s):


DECISION ID	13255	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Sediment
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Sediment in the Upper South Fork Salmon River (the watershed upstream of the confluence with the East Fork South Fork Salmon River) and the North Fork Salmon River is being considered for placement on the Section 303(d) List under Sections 3.1 and 3.8 of the Listing Policy. Under Section 3.1, a single line of evidence is necessary to assess listing status. Zero primary lines of evidence, three supporting lines of evidence, and two lines of evidence that were not utilized in this decision are available in the administrative record to assess this pollutant. Primary evidence: No instream data available. Supporting evidence: One line of evidence (LOE 25702), which is a conclusion statement about visual observations, shows that a larger proportion of fine sediment in the substrate of the Upper South Fork Salmon River with alluvial reaches made shallower and wider due to sedimentation; therefore causing 1 out of 1 exceedance. According to the Listing Policy, section 3.8, visual assessments may only be used as secondary/supporting lines of evidence. Two lines of evidence (LOEs 26340 and 26341) show that road densities in the Upper South Fork Salmon River Watershed and North Fork Salmon River Watershed do not exceed the evauation guideline as it applies to the sediment objective. Evidence not incorporated in final decision: Modeling data (LOEs 7460 and 9130) pertaining to landslide volumes, and surface erosion values are not being incorporated in this decision as public comments submitted on the Integrate Report pointed out that the modeling results were out-of-date and that newer results were available. In addition, the Functionally Equivalent Document to the Listing Policy states that modeling data can not be used as primary evidence. Newer modeling results were submitted by the USFS during the public comment period and will be considered as supporting evidence in the next listing cycle. Based on the readily available data and information, there is insufficient justification in favor of placing this water segment-pollutant combination on the Section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that (1) there is no primary evidence available to justify this listing, (2) only three supporting lines of evidence are available and two of those reflect no impairment, (3) the documents submitted do not contain substantial information for listing, more data is needed to determine if the water quality objective is exceeded, and (4) pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	After review of the available data and information, North Coast RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 13255, Sediment	Region 1
Klamath River HU, Salmon River HA

LOE ID:

7460

Pollutant:

Sediment

LOE Subgroup:

Adverse Biological Responses

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

MODELING

Data Used to Assess Water Quality:

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Spatial Representation:

The Klamath National Forest models are specific to the Upper South Fork Salmon River watershed.

Temporal Representation:

Data from the Klamath National Forest models were finalized in 1998.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 13255, Sediment	Region 1
Klamath River HU, Salmon River HA

LOE ID:

26340

Pollutant:

Sediment

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

The road density in the Upper South Fork Salmon River Watershed (the watershed upstream of the confluence with the East Fork South Fork Salmon River) does not exceed the evaluation guideline as it applies to the sediment objective. Per the Klamath National Forest (KNF 2000), the road density in the Upper South Fork Salmon River Watershed is 1.24 mi / sq. mi. Of the 230 total miles of road in the 118,390 square mile watershed, 91.1 mi of road are located within 105 m of a stream (KNF 2000). While there are a significant number of road miles located near stream channels and in valley bottoms, the water quality impact from near stream roads applies more directly to the temperature objective than to the sediment objective.

Data Reference:

Attachment E: Roads & Hydrologic Connectivity. Northern California Province Category 1 watersheds meeting "management-constrained" criteria. March 2000

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Road density and location information were assessed for the entire Upper South Fork Salmon River Watershed.

Temporal Representation:

The road density and location data from the Klamath National Forest is current as of early 2000.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 13255, Sediment	Region 1
Klamath River HU, Salmon River HA

LOE ID:

26341

Pollutant:

Sediment

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Land use information and location of sources

Data Used to Assess Water Quality:

The road density in the North Fork Salmon River Watershed does not exceed the evaluation guideline as it applies to the sediment objective. Per the Klamath National Forest (KNF 2000), the road density in the North Fork Salmon River Watershed is 1.03 mi / sq. mi. Of the 210 total miles of road in the 130,394 acre watershed, 76.4 mi of road are located within 105 m of a stream (KNF 2000). While there are a significant number of road miles located near stream channels and in valley bottoms, the water quality impact from near stream roads applies more directly to the temperature objective than to the sediment objective.

Data Reference:

Attachment E: Roads & Hydrologic Connectivity. Northern California Province Category 1 watersheds meeting "management-constrained" criteria. March 2000

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Road density and location information were assessed for the entire North Fork Salmon River Watershed.

Temporal Representation:

The road density and location data from the Klamath National Forest is current as of early 2000.

Environmental Conditions:

There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data.

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 13255, Sediment	Region 1
Klamath River HU, Salmon River HA

LOE ID:

9130

Pollutant:

Sediment

LOE Subgroup:

Adverse Biological Responses

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

MODELING

Data Used to Assess Water Quality:

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Spatial Representation:

The Klamath National Forest models are specific to the North Fork Salmon River watershed.

Temporal Representation:

Data from the Klamath National Forest models were finalized in 1998.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Quantitative Models for Surface Erosion, Mass-wasting and ERA/TOC. CWE 2004. Cumulative Watershed Effects Analysis Process Paper. Klamath National Forest

Line of Evidence (LOE) for Decision ID 13255, Sediment	Region 1
Klamath River HU, Salmon River HA

LOE ID:

25702

Pollutant:

Sediment

LOE Subgroup:

Adverse Biological Responses

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Migration | Fish Spawning | Preservation of Rare & Endangered Species | Wildlife Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Surveys of fish and game biologists/other professionals

Data Used to Assess Water Quality:

"The Flood of 1997 Klamath National Forest" report (de la Fuente and Elder 1998) states that "[b]ased on observations of fisheries personnel, there appeared to be considerable reduction in size, volume and depth of pools in Elk, Indian, Beaver, Grider, Tompkins, South Fork Salmon, and Walker Creeks, and there is a larger proportion of fine sediment in the substrate. Alluvial reaches were made shallower and wider due to sedimentation." Only the South Fork Salmon River falls within the Salmon River Hydrologic Area.

Data Reference:

The flood of 1997-Klamath National Forest. Phase 1 Final Report. Yreka, CA: Klamath National Forest

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Per the Basin Plan (North Coast RWQCB 2007): The suspended sediment load and suspended sediment discharge rate of surface waters shall not be altered in such a manner as to cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The assessment applies to the South Fork Salmon River Watershed.

Temporal Representation:

The assessment was made after the flood over December 26, 1996 to January 3, 1997. Findings were made available in November 1998.

Environmental Conditions:

Conditions were a result of the storm of December 26, 1996 to January 3, 1997.

QAPP Information:

The assessment was made by professional staff of the Klamath National Forest.

QAPP Information Reference(s):


DECISION ID	4379	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Nutrients
Final Listing Decision:	Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Delist from 303(d) list (TMDL required list)(2006)
Revision Status	Original
Reason for Delisting:	Applicable WQS attained; reason for recovery unspecified
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the Section 303(d) List under Section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. There are nine lines of evidence that are available in the administrative record to assess the existing nutrients listing. The Salmon River was added to the 303(d) List for nutrients in 1992. Regional Board staff conducted a water quality monitoring effort to evaluate the impact of nutrients in the Salmon River watershed. Based on these eight lines of evidence that there is no indication that nutrients are impacting the Salmon River HA. NCRWQCB staff recommends that the Salmon River be de-listed for nutrients. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) The narrative nutrient information as well as the observations of attached algae indicates that nutrients are not reaching nuisance levels in the Salmon River HA. Analytical results of nutrient grab samples were generally non-detect and they did not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. (4) Pursuant to Section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

Regional Board Decision Recommendation:	This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The Regional Board will update this decision when new data and information become available and are assessed.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1642

Pollutant:

Nutrients

LOE Subgroup:

Pollutant-Nuisance

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

In all but a few cases, all nutrient parameters were non-detect. Based on the available data, there is no indication that nutrients are impairing the Salmon River watershed. Analytical results of nutrient grab samples were generally non-detect. Observations of attached algae, presence of which represents a primary biological response to nutrient concentrations in streams, indicate that aquatic plants do not reach nuisance levels (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Water shall not contain bio-stimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

The rationale for conducting the survey was to evaluate the "nuisance" growths of aquatic plants, in relation to the narrative objective for bio-stimulatory substances in the Basin Plan.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

There were 5 sampling locations. The sampling locations included the North Fork downstream of Sawyers Bar, the South Fork downstream of Cecilville, the Salmon River downstream of Forks of Salmon and Salmon River near the mouth. In addition, grab samples were collected near the mouth of Wooley Creek; this site was considered a control site, as the sub-watershed is a wilderness area.

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1651

Pollutant:

Total Organic Carbon (TOC)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for TOC in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 22 TOC measurements in total. The average of the samples taken was 1.10. The range of the measurements taken between June and October 2002 was 0.9 to 1.7 (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for TOC for Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1647

Pollutant:

Ammonia as Nitrogen

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Aquatic Life Use:

Fish Spawning

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

The grab samples were analyzed for Ammonia as Nitrogen in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 measurements in total the majority of which were non-detects. With non-detect values and a value at 0.052 on 6/10/2002, and another at 0.062 on 7/23/2002 at the mainstem Salmon River at USGS Gage Station; Non-detects and a value of 0.056 on 6/10/2002 and 0.052 on 7/22/2002 at Wooley Creek Station; With all non-detects at mainstem Salmon River at Forks of Salmon Station; All non-detects at North Fork Salmon at Sawyers Bar Station; and all non-detect values at South Fork Salmon at Cecilville (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for Ammonia as Nitrogen applicable to Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

There are no applicable criteria for Ammonia as Nitrogen that applies.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1649

Pollutant:

Chlorophyll-a

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

The grab samples were analyzed for Chlorophyll-a in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 measurements the majority of which were nondetects (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for Chlorophyll-a applicable to Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

There are no applicable criteria for Chlorophyll-a that could be used for the Salmon River.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1646

Pollutant:

Nitrate/Nitrite (Nitrite + Nitrate as N)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for Nitrate/Nitrite as Nitrogen in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 measurements in total the majority of which were non-detects. With all non-detect values at the Mainstem Salmon River at USGS Gage Station; All non-detects at Wooley Creek Station; With non-detects and one value of 0.15 on 6/11/02 at Mainstem Salmon River at Forks of Salmon Station; All non-detects at North Fork Salmon at Sawyers Bar Station; and non-detect values and one value at 0.058 at South Fork Salmon at Cecilville (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for Nitrate/Nitrite as Nitrogen applicable to Salmon River HA. There is a Municipal Beneficial Use for Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

With regards to the Municipal beneficial use applicable to Salmon River. The MCL Criteria for Nitrate/Nitrite as Nitrogen apply. Title 22(www.calregs.com) Table 64431-A lists the MCL--Inorganic Chemicals criteria for Nitrate/Nitrite as Nitrogen as 10.0 mg/L.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1641

Pollutant:

Nutrients

LOE Subgroup:

Pollutant-Nuisance

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

In all but a few cases, all nutrient parameters were non-detect. There is no indication that the Salmon River Watershed is impaired by nutrients. Observations of attached algae indicate that aquatic plants do not reach nuisance levels. Quasi-Quantitative surveys of the percent cover of attached algae in the river at the monitoring location were conducted in July and August 2002. The surveys involved making visual assessments of the percent cover of attached algae and the conditions of the algal community within the immediate vicinity of the monitoring locations (North Coast RWQCB, 2004c).The Salmon River, tributary to the Klamath River in Siskiyou County, was included in a nutrient impaired listing of Hydrologic Unit 105.00 (Klamath River Basin) pursuant to the requirements of CWA 303(d). The Klamath River mainstem is the subject of separate analysis and TMDL development for impairments, of which nutrients is one.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Water shall not contain bio-stimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

The rationale for conducting the survey was to evaluate the "nuisance" growths of aquatic plants, in relation to the narrative objective for bio-stimulatory substances in the Basin Plan.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

North Coast RWQCB QA.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1648

Pollutant:

Phosphorus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for Phosphorus in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 measurements in total the majority of which were non-detects. With all non-detect values at the Mainstem Salmon River at USGS Gage Station; All non-detects and a value of 0 on 6/10/2002 at Wooley Creek Station; With all non-detects at Mainstem Salmon River at Forks of Salmon Station; All non-detects at North Fork Salmon at Sawyers Bar Station; and all non-detect values at South Fork Salmon at Cecilville (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Water shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Phosphorus is considered in the narrative objective for bio-stimulatory substances. There are no applicable criteria for Phosphorus that could be used for the Salmon River. In 2002, SWRCB staff recommended not listing for elemental phosphorus for Laguna de Santa Rosa because there was no appropriate phosphorus objective or evaluation guideline to interpret the narrative objective that was available to the NCRWQCB.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1645

Pollutant:

Total Kjeldahl Nitrogen (TKN)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for TKN in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 measurements in total the majority of which were non detects. With non-detect values and one value of 0.7 on 7/23/02 at the Mainstem Salmon River at USGS Gage Station; All non-detects at Wooley Creek Station; With non-detects and one value of 0.6 on 7/23/02 at Mainstem Salmon River at Forks of Salmon Station; All non-detects at North Fork Salmon at Sawyers Bar Station; and non-detect values and one value at 0.8 at South Fork Salmon at Cecilville (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for Total Kjeldahl Nitrogen (TKN) applicable to Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impact of the nutrients in the Salmon River. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4379, Nutrients	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1643

Pollutant:

LOE Subgroup:

Pollutant-Nuisance

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

The grab samples were analyzed for pH in addition to dissolved oxygen, temperatures and specific conductance. They were measured using an YSI 600XL datasondes when grab samples were collected. There were 25 pH measurements in total with an average pH of 7.55. The WQO for Salmon River is attained by all samples except for one measurement taken on 6/11/02 that was below the 7.0 WQO at 6.97 (North Coast RWQCB, 2004c).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: The pH shall conform to those limits listed in Table 3-1. For waters not listed in Table 3-1 and where pH objectives are not prescribed, the pH shall not be depressed below 6.5 nor raised above 8.5. Changes in normal ambient pH levels shall not exceed 0.2 units in waters with designated marine (MAR) or saline (SAL) beneficial uses nor 0.5 units within the range specified above in fresh waters with designated COLD or WARM beneficial uses.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Table 3-1 in the NCRWQCB Basin Plan lists the Salmon River HA (All streams) WQO for pH as a minimum at 7.0 and the maximum at 8.5.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):


DECISION ID	4363	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Total Coliform
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the Section 303(d) List under Section 3 of the Listing Policy. Under Section 3 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) The data collected for the month of July show that the water quality objective is not exceeded. There was also in formation collected at the 5 sampling locations for the month of October the data reports "detect" only for all measurements taken. These samples do not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The decision has not changed.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4363, Total Coliform	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1652

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

The grab samples were analyzed for total coliform in addition to pH, dissolved oxygen, temperatures and specific conductance. The measurements taken for the month of July 2002 at the 5 sample locations resulted in a median total coliform value of 40/100ml. The WQO is that the median fecal coliform concentration based on a minimum of not less than five samples for any 30-day period shall not exceed 50/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400/100 ml. The data collected for the month of July appear to show that the WQO is not exceeded. There was also in formation collected at the 5 sampling locations for the month of October the data reports "detect" only for all measurements taken. (North Coast RWQCBc, 2004)

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: (Total Coliform included) The bacteriological quality of waters of the North Coast Region shall not be degraded beyond natural background levels. In no case shall coliform concentrations in waters of the North Coast Region exceed the following:
In waters designated for contact recreation (REC-1), the median fecal coliform concentration based on a minimum of not less than five samples for any 30-day period shall not exceed 50/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400/100 ml (State Department of Health Services).

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):


DECISION ID	4381	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Total Dissolved Solids
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the Section 303(d) List under Section 3 of the Listing Policy. Under Section 3 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) None of the samples exceed the objective. The range of values were between 12 and 150 well below the Secondary MCL Criteria for total dissolved solids of recommended 500 and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The decision has not changed.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4381, Total Dissolved Solids	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1644

Pollutant:

Total Dissolved Solids

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Municipal & Domestic Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for TDS in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 TDS measurements in total with an average of 61. The range of values was between 12 and 150, well below the Secondary MCL Criteria for TDS of recommended 500. The values measured indicate there is no exceedance of the applicable MCL criteria. (North Coast RWQCBc, 2004)

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for TDS applicable to Salmon River HA listed in Table 3-1. There is a Municipal Beneficial Use for the Salmon River HA.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

With regard to the Municipal Beneficial Use, Title 22: Table 64449-B Secondary Maximum Criteria Levels--Ranges are applicable MCL criteria to compare the TDS data with. The Secondary MCL Criteria are listed for Total Dissolved Solids as: recommended at 500, upper at 1000 and short term at 1500.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River HA located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):


DECISION ID	4362	Region 1
Klamath River HU, Salmon River HA

Pollutant:	Total Suspended Solids (TSS)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the Section 303(d) List under Section 3 of the Listing Policy. Under Section 3 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) There were 55 total suspended solids measurements in total, there were 3 measurements at values of 17, 24 and 27 at different stations, all of the other 53 samples collected were non-detect. The water quality objective is not exceeded and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The decision has not changed.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4362, Total Suspended Solids (TSS)	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1650

Pollutant:

Total Suspended Solids (TSS)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The grab samples were analyzed for TSS in addition to pH, dissolved oxygen, temperatures and specific conductance. There were 55 TSS measurements in total. With all non-detect values at the Mainstem Salmon River at USGS Gage Station; With non-detects and one value of 24 on 6/10/2002 at Wooley Creek Station; With all non-detects at Mainstem Salmon River at Forks of Salmon Station; With non-detects and a value of 17 on 6/10/2002 at North Fork Salmon at Sawyers Bar Station; and non-detect values and one value of 27 on 6/10/2002 at South Fork Salmon at Cecilville. (North Coast RWQCBc, 2004)

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

There is no NCRWQCB Basin Plan Water Quality Objective for TSS for Salmon River HA listed in Table 3-1. However there is a Suspended Material narrative objective in the Basin Plan: Waters shall not contain suspended material in concentrations that cause nuisance or adversely affect beneficial uses.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):


DECISION ID	4380	Region 1
Klamath River HU, Salmon River HA

Pollutant:	pH
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the Section 303(d) List under Section 3 of the Listing Policy. Under Section 3 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. The water quality objective for Salmon River is attained by all 25 samples except for one measurement taken on 6/11/02 that was below the 7.0 objective at 6.97. One of the samples exceeds the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of Section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of Section 6.1.5 of the Policy. (3) One of the 25 samples exceeded the pH water quality objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The decision has not changed.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4380, pH	Region 1
Klamath River HU, Salmon River HA

LOE ID:

1643

Pollutant:

LOE Subgroup:

Pollutant-Nuisance

Matrix:

Water

Fraction:

Total

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Table 3-1 in the NCRWQCB Basin Plan lists the Salmon River HA (All streams) WQO for pH as a minimum at 7.0 and the maximum at 8.5.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Temporal Representation:

The Salmon River was added to the list for nutrients in 1992. In the summer of 2002 NCRWQCB Staff conducted a water quality monitoring effort to evaluate impairment of the Salmon River by nutrients. The monitoring plan involved collecting grab samples on three consecutive days once per month in June through October 2002 at locations in the Salmon River watershed located immediately downstream of community centers within the watershed.

Environmental Conditions:

QAPP Information:

NCRWQCB QA. Data were collected compliant with a quality assurance plan. Blind duplicate samples were collected as a data quality control measure with acceptable results.

QAPP Information Reference(s):