Final 2012 Iowa Impaired Waters Listing Approved By USEPA

In an April 24, 2013 decision letter, US EPA has approved Iowa’s 2012 list of impaired waters requiring Total Maximum Daily Load (TMDL) calculations. The Iowa Department Natural Resources (IDNR) submitted its impaired waters list to EPA on April 1, 2013, for review and approval as required by the Clean Water Act.

In its decision, EPA approved the removal of 73 water bodies and the addition of 78 water bodies to the Iowa list of impaired waters. The action brings the total number of impaired waters on the state’s list to 479.

As background, a water body is placed on the impaired waters list when monitoring finds that pollutant levels prevent the lake, river, or stream from attaining its beneficial uses. A water body can be removed from the list if it meets its beneficial uses or if a pollution reduction plan (TMDL) for a water body is approved by EPA. Beneficial uses in Iowa include human recreation, water supply, and maintaining healthy aquatic life.

Caltha LLP provides expert consulting services to public and private sector clients in Iowa and nationwide to address water quality standards, wastewater permitting and assessing potential impacts of chemicals in the aquatic environment.
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General Permit For Small Dredging Operations Issued By EPA Region 10

US EPA Region 10 has issued a new federal water discharge permit operate small dredge operations in Idaho. Mining for gold using small suction dredges is a popular activity in Idaho with hundreds of dredges in use, especially during the summer. Small-scale suction dredge miners ( defined as using intake nozzles of five inches in diameter or less and engines rated at 15 horsepower or less) will need to apply for coverage under the new Clean Water Act general permit. Larger suction dredges are not covered by this general permit and need to be authorized under a separate individual permit.

To legally operate small suction dredges in Idaho, miners must apply to EPA to be covered by the EPA General Permit, as well as check with the Idaho Department of Water Resources or other state or federal authority for any additional permits that may be required.

The EPA General Permit also contains:

• Special conditions
• Required best practices for dredging equipment operations
• Areas that are open to small suction dredge mining
• Monitoring and reporting requirements

If an operator does not meet the eligibility requirements to be covered under the general permit, they can apply for an individual permit from EPA.

Caltha LLP provides expert consulting services to public and private sector clients nationwide to address water quality standards, wastewater permitting and assessing potential impacts of chemicals in the aquatic environment.
Caltha LLP Aquatic Toxicology / WQ Standards Services Website

Federal Water Quality Standards Withdrawn For New Jersey, Puerto Rico and San Francisco Bay

EPA is taking final action to amend the federal regulations to withdraw certain human health and aquatic life water quality criteria applicable to waters of New Jersey, Puerto Rico, and California's San Francisco Bay. In 1992, EPA promulgated the National Toxics Rule or NTR to establish numeric water quality criteria for 12 states and two Territories, including New Jersey, Puerto Rico and parts of California. On May 18, 2000, EPA then promulgated a final rule known as the California Toxics Rule or CTR in order to establish numeric water quality criteria for priority toxic pollutants for the State of California that were not previously in the NTR.

These two states and one territory have now adopted, and EPA has approved, water quality criteria for certain pollutants included in the NTR. Because California, New Jersey, and Puerto Rico now have water quality standards that meet the requirements of the Clean Water Act, EPA has determined that the federally promulgated criteria are no longer needed for these pollutants. Therefore EPA is proposing to amend the federal regulations to withdraw those certain criteria applicable to California, New Jersey, and Puerto Rico. The withdrawal of the federally promulgated criteria will enable New Jersey, Puerto Rico, and California to implement their EPA-approved water quality criteria. This final rule is effective on June 3, 2013.

The water quality criteria subject to this action address both freshwater and marine standards and cover a wide range of priority pollutants, including metals, volatile organic chemicals, PAHs, PCBs, pesticides and others EPA has proposed to withdraw only one federal water quality criteria for California - the saltwater aquatic life cyanide criteria for San Francisco Bay. Other criteria for cyanide for waters in California that are currently part of the NTR or CTR will remain unchanged in the federal regulations

.Caltha LLP provides expert consulting services to public and private sector clients nationwide to address water quality standards, wastewater permitting and assessing potential impacts of chemicals in the aquatic environment.
Caltha LLP Aquatic Toxicology / WQ Standards Services Website