Consolidated SPDES Renewals
6NYCRR Part 190
Pursuant to the Environmental Conservation Law, sections 1-0101(3)(d), 1-0101(3((b), 3-0301(1)(b), 3-0301(1)(d), 3-0301(2)(m), 9-0105(1) and 9-0105(3) and Executive Law Section 816(3) the Department of Environmental Conservation hereby gives notice of the following:
Adoption of a new 190.0(b)10 that defines persons
with disabilities and adoption of a new subdivision (f)
of section 190.3 of 6NYCRR, Camping Sites
For further information contact:
Bureau of State Land Management
Albany, New York 12233-4255
New York State Department of Environmental Conservation
NYSDEC Guidelines on Dispersion Modeling Procedures for
Air Quality Impact Analysis
The Department has revised it’s Air Guide 26 (version 12/9/96) to incorporate a number of updates to the EPA recommended modeling guidelines, at 40 CFR Part 51 Appendix W. The latest EPA guideline revision became effective December 9, 2005 and adopted the AERMOD model as the standard recommended approach. This model has been in the works for a number of years and our revision to Air Guide 26 was awaiting its official approval. This program policy also updates the nonattainment area emission offset source location criteria, the PSD minor source baseline areas and PSD permitted sources, and a few other changes included in the EPA modeling guidelines.
The purpose of this guidance is to recommend specific and uniformly applicable procedures in carrying out an air quality impact analysis in support of permit applications or SEQRA related analysis.
For further information, contact:
NYSDEC Division of Air Resources
625 Broadway Albany NY 12233-3254
This notice announces the availability of the Draft New York State 2006 Section 303(d) List of Impaired Waters. The list identifies those waters that do not support appropriate uses and that require and are scheduled for development of a Total Maximum Daily Load (TMDL) or other restoration strategy. Public comment on the list will be accepted for 30 days, through March 17, 2006.
BACKGROUND: The Federal Clean Water Act requires states to periodically assess and report on the quality of waters in their state. Section 303(d) of the Act also requires states to identify Impaired Waters, where specific designated uses are not fully supported. For these Impaired Waters, states must consider the development of a Total Maximum Daily Load (TMDL) or other more appropriate strategy to reduce the input of the specific pollutant(s) that restrict waterbody uses, in order to restore and protect such uses. Additionally, the state is required to develop a Consolidated Assessment and Listing Methodology (CALM) to outline its process for monitoring and assessing the quality of New York State waters. The CALM describes the water quality assessment and Section 303(d) listing process in order to improve the consistency of assessment and listing decisions.
INFORMATION: Copies of the Draft New York State 2004 Section 303(d) List can be obtained by contacting the NYSDEC Bureau of Watershed Assessment and Management by mail at 625 Broadway, 4th Floor, Albany, NY 12233-3502, or by phone at 518-402-8179. An electronic version of the list can also be requested by email to email@example.com. The list is also expected to be available on the NYSDEC website during the comment period at: www.dec.state.ny.us/website/dow/303d2006.pdf.
Public comments regarding the Section 303(d) List should be mailed to the Bureau of Watershed Assessment and Management at the above address.
Proposed Technical Amendment to the LIS TMDL
In January 2001, the New York State Department of Environmental Conservation ("Department") submitted A Total Maximum Daily Load Analysis to Achieve Water Quality Standards for Dissolved Oxygen in Long Island Sound (hereafter the "LIS TMDL") to the U.S. Environmental Protection Agency. www.dec.state.ny.us/website/dow/tmdllis.pdf . The LIS TMDL was developed jointly with the Connecticut Department of Environmental Protection ("Connecticut DEP"). In April 2001, the U.S. Environmental Protection Agency ("EPA") determined that the LIS TMDL met the requirements of section 303(d) of the Clean Water Act, and EPA's implementing regulations (40 CFR Part 130) and thereby approved the LIS TMDL. EPA's Approval Letter for the LIS TMDL, (April 3, 2001).
Table 6 of the LIS TMDL identifies the sum of the New York and Connecticut Waste Load Allocations ("WLAs") from each of 11 management zones. Table 7 of the LIS TMDL contains equivalency factors that identify the relative impact of nitrogen from each zone on dissolved oxygen ("DO") conditions in Long Island Sound. Compliance with the LIS TMDL can be achieved through meeting the WLAs or through new allocations resulting in equal or greater water quality improvements, as defined by the Table 7 equivalency factors. The equivalency factors comprise river delivery factors (the amount of nitrogen discharged to a river segment that makes it the mouth of the river) and Long Island Sound transport efficiencies (the relative impact of nitrogen discharged from a management zone on the hypoxic hotspots). In other words, allocations among facility-specific WLAs can be modified without resubmitting a revised LIS TMDL as long as the new allocations resulted in equal or greater water quality improvements, as determined by the use of the exchange ratios identified in Table 7 of the LIS TMDL document.
The Table 7 transport efficiencies were established from predictions of the "LIS 3.0" water quality model developed in the 1990s. A new model, called the Systemwide Eutrophication Model ("SWEM") has subsequently been developed. The Department recognized early on that SWEM had certain advantages over LIS 3.0 and that the SWEM should be used in the future, once accepted. See Department Response to Public Comments on the LIS TMDL, Modeling Tools on pg 10-11 and Recent/Future Monitoring on pg 24 (January 2001), www.dec.state.ny.us/website/dow/responseliss.pdf. In fact, the LIS TMDL cites the application of SWEM as one of the elements to a planned revision of the LIS TMDL. See LIS TMDL, Reassessment on pg 48 and Table 14. SWEM contains a number of technical improvements over LIS 3.0 and has since been reviewed and approved by the Long Island Sound Study for application to Long Island Sound planning and management.
In light of its subsequent approval by the Long Island Sound Study and after consultation with and without objection from Connecticut DEP, the Department hereby proposes a limited amendment to the LIS TMDL to incorporate the insights from SWEM predictions of the relationship between the DO response to nitrogen discharges from zone 8 (the upper East River Management Zone) and zone 9 (the lower East River Management Zone). This limited technical amendment would support the New York City Department of Environmental Protection's ("New York City DEP") development of a long-term nitrogen control program to attain its WLAs for zone 8 and zone 9 discharges, without compromising water quality. The technical amendment would formalize the use of SWEM ratios in meeting the allocations to those zones in advance of a more comprehensive revision of the LIS TMDL. The Department is soliciting public comment on the proposed amendment before submitting it to the EPA for review and approval.
SWEM predicts a greater overall DO response from achieving the zone 8 and zone 9 WLAs than LIS 3.0. SWEM also predicts that the ratio of the transport efficiencies (the relative impact of nitrogen discharged from a management zone on the hypoxic hotspots) between zone 8 and zone 9 is 4:1, compared to the LIS 3.0 transport ratio of 2:1. Therefore, the Department proposes to modify the LIS TMDL Table 7 transport efficiencies for zone 8 and zone 9 to a 4:1 ratio from a 2:1 ratio. New York City DEP would comply with the LIS TMDL through meeting the WLAs or through new allocations using the updates to the Table 7 equivalency factors. This revision to the equivalency factors would only apply to reallocations between zone 8 and zone 9. Because SWEM predicts a greater overall DO response from achieving the zone 8 and zone 9 WLAs than LIS 3.0, this change places no additional burden on discharges from other zones to achieve water quality standards. The timeframe for using this amendment based on a combination of SWEM and LIS 3.0 ratios would be until the anticipated full SWEM technical update (and other technical updates) are incorporated into a complete LIS TMDL revision.
Public comment on the proposed amendment will be accepted for 30 days, through April 7, 2006. Comments should be submitted in writing to Philip O’Brien of Division of Water, 625 Broadway, Albany, NY 12233-3502, or by email at firstname.lastname@example.org.