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Wednesday, Sep. 19, 2018
Divisions > Water Division > Programs/Bureaus/Units > Beach Inspection Program >
Current Beach Advisories as of September 19, 2018
Regularly sampled beach Most recent samples meet standards Beach currently under advisory Beach currently under advisory Monitoring season completed Monitoring season completed
Please note: The above map may not display accurate icons for a short time after any update. The charts below listing advisories and warnings are updated instantly by DES Beach Program staff.

Beach sampling/monitoring is conducted between Memorial Day and Labor Day.

For beach & advisory details, sampling results, and yearly reports, conduct a OneStop search.

Summary reports of monitoring seasons are also available at: http://des.nh.gov/organization/divisions/water/wmb/beaches/beach_reports/index.htm.

Follow the NHDES Beaches Advisories Twitter Feed.

To receive future Beach Advisory Newsletters join the NHDES E-Mail List.

For explanations about advisories and procedures, please visit the Beach Advisories page: http://des.nh.gov/organization/divisions/water/wmb/beaches/advisories.htm.


Current Beach Advisories

Advisories are updated daily during the swim season. Beaches are only listed here if the most recent fecal bacteria or cyanobacteria sample analysis exceeded state standards. Results are available through the OneStop database.

Beach sampling/monitoring is conducted between Memorial Day and Labor Day.

For beach and advisory details, sampling results, and yearly reports, conduct a OneStop search.

Summary reports of monitoring seasons are also available at: http://des.nh.gov/organization/divisions/water/wmb/beaches/beach_reports/index.htm .

Follow the NHDES Beach Advisories Twitter Feed.  NHDES Beaches Advisories Twitter Feed

To receive future Beach Advisory Newsletters, join the NHDES E-Mail List.  https://www.des.nh.gov/media/enews/index.htm

For explanations about advisories and procedures, please visit the Beach Advisories page: http://des.nh.gov/organization/divisions/water/wmb/beaches/advisories.htm.

 There are currently no beaches with fecal bacteria warnings issued in the State of New Hampshire.
Cyanobacteria Lake Warnings

Lakes without designated beaches or areas of a lake away from a designated beach are issued cyanobacteria lake warnings when a large algae bloom is observed. Lakes with cyanobacteria warnings are re-inspected weekly.

 


Date of WarningDescription of Warning
6/29/2018SILVER LAKE, HOLLIS. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been accumulating along the shoreline. Green surface scums are concentrating near the beach and boat launch at the State Park. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep children and pets out. Monitored daily by park staff. Most recent samples collected on 8/21/18. The Lake Warning Remains.
7/17/2018KEYSER POND, HENNIKER. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted appearing as bluish-green flecks throughout the water and along shorelines. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out. Monitored weekly by volunteers. Most recent samples collected on 8/25/18. The Lake Warning Remains.
7/20/2018JONES POND, NEW DURHAM. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted appearing as bluish-green globs throughout the water and along the dam. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out.Monitored weekly by volunteers. Most recent samples collected on 8/30/18. The Lake Warning Remains.
7/27/2018MARSH POND, NEW DURHAM. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted on Marsh Pond. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out. Monitored weekly by volunteers. Most recent samples collected on 8/30/18. The Lake Warning Remains.
8/17/2018ARLINGTON MILL RESERVOIR, SALEM. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted appearing as bluish-green patches on the water around the lake. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out. Most recent samples collected 8/23/18. The Lake Warning Remains.
8/24/2018DANFORTH BAY, FREEDOM. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been observed in Danforth Bay, appearing as blue-green aggregations along shores and coves. The cyanobacteria concentration was in excess of millions of cells/ml, comprised of Oscillatoria. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out. This is the second warning for this waterbody this summer, with reports of the bloom moving through the Ossipee water systems. Most recent samples were collected 8/29/18. Observations made daily by volunteers. The Lake Warning Remains.
8/30/2018WINTER HARBOR - LAKE WINNIPESAUKEE, WOLFEBORO. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted appearing as green spots throughout the water and along shorelines. This is a unique cyanobacteria bloom called Gloeotrichia, appearing as small, fuzzy balls in the water. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out.
8/8/2018SHOWELL POND, SANDOWN. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted appearing as bluish-green flecks throughout the pond. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out. Most recent samples collected on 8/22/18 and 8/28/18. The Lake Warning Remains.
9/7/2018HUNKINS POND, SANBORNTON. A possible toxin-producing cyanobacteria (blue-green algae) bloom has been spotted on Hunkins Pond. Nearshore conditions appear to be entangled with green filamentous algae, while the open water contains cyanobacteria with over 70,000 cells per milliliter. Please be advised conditions can change and bloom conditions may appear elsewhere on the lake. Lake users should avoid contact with the water in areas experiencing cyanobacteria bloom conditions and keep pets out.

 


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