| Pollutant: |
Ammonia (Unionized) |
| Final Listing Decision: |
List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2010) |
| Revision Status |
Original |
| Sources: |
Source Unknown |
| Expected TMDL Completion Date: |
2021 |
| Impairment from Pollutant or Pollution: |
Pollutant |
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| Regional Board Conclusion: |
The decision has not changed. Region 3 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle. |
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| Regional Board Decision Recommendation: |
No new data were assessed for 2012. The decision has not changed. |
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| State Board Staff Review of Regional Board Conclusion and Recommendation: |
|
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| State Board Decision Recommendation: |
After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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Line of Evidence (LOE) for Decision ID 19353, Ammonia (Unionized)
|
Region 3 |
Soda Lake |
|
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| LOE ID: |
698 |
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| Pollutant: |
Ammonia (Unionized) |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
Total |
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| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
7 |
| Number of Exceedances: |
3 |
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| Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
| Data Used to Assess Water Quality: |
Three out of seven samples exceeded the general water quality objective (CCAMP, 2004; SWAMP, 2004). |
| Data Reference: |
Placeholder reference 2006 303(d) |
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| SWAMP Data: |
SWAMP |
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| Water Quality Objective/Criterion: |
The discharge of wastes shall not cause concentrations of unionized ammonia (NH3) to exceed 0.025 mg/L (as N) in receiving waters (Region 3 Basin Plan, Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a. General Objectives, page III-4) |
| Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
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| Evaluation Guideline: |
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| Guideline Reference: |
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| Spatial Representation: |
Samples were collected from two sites. Exceedances were detected in samples collected from both sites. |
| Temporal Representation: |
Samples were collected from January 2000 to May 2000. |
| Environmental Conditions: |
The water body is located in the Carrizo Plain hydrologic unit, Carrizo Plain hydrologic subarea. Sites are located at Soda Lake Northeast (311SLE) and Soda Lake Culverts at Seven Mile Road (311SLN). |
| QAPP Information: |
CCAMP, SWAMP QAPP. |
| QAPP Information Reference(s): |
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