Flashcards in R1 Basin Plan Deck (59):
Tributary Rule Scope
Limited to the sub-watershed.303(d) water and all tribs in the sub-watershed
Range of Dissolved Oxygen WQOs
5-9 mg/L, depending upon spawning
90% upper and lower limits
90% upper and lower limits represent the 90 percentile values for a calendar year. 90% or more of the values must be less than orequal to an upper limit and greater than or equal to a lower limit.
How does R1 implement fed and state antideg?
Waters specified in the Water Quality Control Plan for Control of Temperature in the Coastal and Interstate Waters and Enclosed Bays of California""
COLD interstate waters, WARM interstate waters, and Enclosed Bays and Estuaries
state policy establishes two conditions that must be met before the quality of high quality waters may be lowered by waste discharges
1.the state must determine that lowering the quality of high quality waters: a) Will be consistent with the maximum benefit to the people of the state,b) Will not unreasonably affect present and anticipated beneficial uses of such water, andc) Will not result in water quality less than that prescribed in state policies (e.g., water quality objectives in Water Quality Control Plans). 2.any activities that result in discharges to high quality waters are required to a) meet waste discharge requirements that will result in the best practicable treatment or control of the discharge necessary to avoid pollution or nuisance and b) maintain the highest water quality consistent with the maximum benefit to the people of the state.
How does State antideg surpass the fed?
Where coastal wetlands protectedWhere policies described
- Coastal Act- Procedural Guidance for the Review of Wetland Projects in California’s Coastal Zone (California Coastal Commission, 1994) and the Procedural Guidance for Evaluating Wetland Mitigation Projects in the California Coastal Zone (California Coastal Commission, 1995)
Industrial Service SupplyDoes not rely on water quality
Industrial Process SupplyRelies on water quality
Purpose of water quality objectives
Protect beneficial usesMaintain high water quality
Municipal and Domestic Supply
How water quality objectives primarily achieved
Implementation of WDRs and the Basin Plan
Water Contact Recreation
Commercial and Sport Fishing
Warm Fresh water habitat
Resolutions for specific waste discharge types that warrant waiving WDRs
Cold Freshwater Habitat
Regions that depend on surface waterbodies for their municipal water supply
Smith, Mad, and Russian Rivers
FISH Subsistence Fishing
Preservation of Areas of SpecialBiological Significance
Inland Saline Water Habitat
Non-Contact Water Recreation
Section____ of the 1987 amendments to the federal Clean Water Act establishes the framework for nonpoint source activities. What does this section require?
- 319- requires each state to develop nonpoint source management plans and to conduct an assessment of the impact nonpoint sources have on the State's waterbodies
50% upper and lower limits
50% upper and lower limits represent the 50 percentile values of the monthly means for a calendar year. 50% or more of themonthly means must be less than or equal to an upper limit and greater than or equal to a lower limit.
Site-Specific and 401-relatedAction Plans
Action Plan for:- Humboldt Bay (since 1975)- Santa Rosa Area- Trinity River- Low-Threat Discharges- Storm Water Dishcarges
Migration of Aquatic Organisms
Spawning, Reproduction, and/orEarly Development
Rare, Threatened,or Endangered Species
CUL Native American Culture
In addition to the temperature plan, the following temperature objectives apply to surface waters:
1. 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.2. At no time or place shall the temperature of any COLD water be increased by more than 5°F above natural receiving water temperature.3. At no time or place shall the temperature of WARM intrastate waters be increased more than 5°F above natural receiving water temperature.
FLD Flood Peak Attenuation/Flood Water Storage
WET Wetland Habitat
WQE Water Quality Enhancement
What plausible remedial measures may help a water attain potential beneficial uses?
Remedial measures include implementation of effluent limits required under Section 301(b) and 306 of the CWA, and implementation of cost-effective and reasonable best management practices for nonpoint source control.
Waterbodies may have potential beneficial uses established for any of the following reasons:
1) the use existed prior to November 28, 1975, but is not currently being attained; 2) plans already exist to put the water to that use; 3) conditions make such future use likely; 4) the water has been identified as a potential source of drinking water based on the quality and quantity available; 5) existing water quality does not support these uses, but remedial measures2 may lead to attainment in the future 6) there is insufficient information to support the use as existing, however, the potential for the use exists and upon future review, the potential designation may be re-designated as existing. The establishment of a potential beneficial use can have different purposes such as establishing a water quality goal, which must be achieved through control actions in order to re-establish a beneficial use, or serving to protect the existing quality of a water source for eventual use.
Section ________ of the Porter-Cologne Water Quality Control Act authorizes the Regional Water Board - in a water quality control plan or in waste discharge requirements - to specify certain conditions or areas where the discharge of waste, or certain types of waste, will not be permitted.
Enclosed Bays and EstuariesOcean PlanThermal Plan- Nonpoint Source Management Planbasin Plan
Maximum Contaminant Levels (MCLs) are standards that are set by the USEPAfor drinking water quality.
Regionwide Policy affecting TMDLs
-Sediment TMDL policy-
Statewide Policies affecting TMDLs
Impaired Waters PolicyNonpoint source policy
What does the Statewide nonpoint source policy explain? What does it state?
how existing permitting and enforcement tools will be used to address nonpoint sources of pollution all current and proposed NPS discharges must be regulated under waste discharge requirements (WDRs), waivers of WDRs, a basin plan prohibition, or some combination of these tools.
What the State impaired water policy describes
the process for developing and adopting TMDLs
CWC Section for time schedule order
The Basin Plan includes
- definitions of beneficial uses of water,- water quality objectives necessary to protect those beneficial uses - implementation plans to control point and nonpoint sources of waste discharges- acknowledgement of and coordination with statewide plans and policies- a surveillance and monitoring component;
CWC Section for cease and desist order
What does the sediment TMDL policy state?
the Regional Water Board shall address sediment waste discharges on a watershed-specific basis and directs staff to take 8 actions to control sediment waste discharges, including using existing permitting and enforcement tools