Future River Studies
The Ashuelot, Cold and Warner Rivers were identified on the 2018 Priority List for future protected instream flow studies. With studies under way for the Cold and Warner Rivers, the Ashuelot River is the next target for implementation of the Instream Flow Program. The protected instream flow study of the Ashuelot River will commence in 2021. Beginning in Winter 2020, NHDES has been working with stakeholders to identify the next rivers as priorities for protected instream flow studies. Please contact us if you have thoughts regarding priority rivers for instream flow protection.
In order to obtain streamflow data to support future management of the designated Contoocook River, the Instream Flow Program has installed a near real-time water level station at the former US Geological Survey gage on the North Branch River in Antrim. To view the data obtained from the station, please use the following link: USGS-01084000.
Outreach & Resources at NHGS
NHGS hosts or participates in several educational opportunities for the general public and professionals, such as field trips and lectures. Other resources and events include:
- Geologic maps and publications through our document library and upon request.
- Earth Science Week (AGI) tool kits and rock and mineral ID kits for teachers and students.
- An annual Geologic Mapping Workshop, which provides CEU credits to professional geologists.
Wetlands Pre-Application Meetings
A pre-application meeting is required for all large projects with impacts to wetlands and streams that may require mitigation. Please contact Carolyn.Guerdet@des.nh.gov to schedule a meeting for your project. There are many benefits to having a pre-application meeting early in your project planning!
- An opportunity to meet with the regional wetland specialist to discuss your project and receive guidance on the information needed to complete your application.
- Establish good communication between state and federal agencies, and the local entities involved in your project.
- Discuss avoidance and minimization measures, and whether your project will require mitigation.
- Reduce rework by all parties – saving time and money!
Want to learn more about your waterbody? Check out our interactive maps!
These interactive maps allow individuals to:
- see the spatial extent of assessment units,
- see where sampling data was collected,
- access the Watershed Report Cards (a.k.a. 305(b)/303(d) assessment info),
- run reports to access water quality data summaries used in the assessment process, and
- view the extent of the EPA's 2017 MS4 General Permit Areas.
Env-A 1400, Regulated Toxic Air Pollutants, Public Hearing and Comment Period for the Proposed Rule
The Air Resources Division (ARD) will be holding a public hearing on Wednesday, September 29, 2021 at 10:00 AM to receive comments on the Initial Proposal of the readoption with amendments of Env-A 1400 Regulated Toxic Air Pollutants. This hearing will be available remotely via Webex (please click on the link for the rulemaking notice with information on how to attend the hearing) and in person at the NHDES Offices, Room 208C. Please send comments on the proposed rule to Karla McManus at Karla.S.McManus@des.nh.gov by the close of business (4 PM) Friday, October 8, 2021.
The formaldehyde ambient air limits have been revised as a result of stakeholder comments. ARD is also proposing to retain the AALs for hydrogen sulfide from the existing Env-A 1400.
ARD presented the revised draft rule to the Air Resources Council in January 2021. In response to comments received during that meeting, the compliance boundary rule, Env-A 1404.07, has been revised and is explained in more detail by the compliance boundary examples.