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Halifax Town Hall, 499 Plymouth Street, Halifax, MA 02338 • Phone/Hours
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Monponsett Pond and Mosquitoes
Current Monponsett Pond Information

The Town of Halifax will host a presentation and public hearing on Thursday, December 15 from 6:30pm to 8:30pm in the Great Hall of the Halifax Town Hall, 499 Plymouth Street by the Division of Watershed ManagementBureau of Water Resources, Massachusetts Department of Environmental Protection of a Draft Total Maximum Daily Loads (TMDL) for Total Phosphorus in four ponds in the Towns of Halifax, Hanson and Pembroke Massachusetts. The four ponds, West Monponsett Pond, East Monponsett Pond, White Oak Reservoir (a.k.a. ‘reservoir’) and Stetson Pond are hydraulically connected and are impaired by nutrients, specifically phosphorus. This Draft TMDL Report is required by the EPA Federal Clean Water Act section 303d and is directed at control of excessive cyanobacteria, algae and non-rooted weeds (duckweed) which impair uses in the ponds, including swimming, and aquatic life. A TMDL is essentially a “pollution budget” designed to restore the health of an impaired waterbody. A copy of this Draft TMDL Report, a complete listing of all lakes, rivers and coastal waters on the Massachusetts Impaired Waters (303d) list and further explanation of the TMDL Program, is available here:


The public hearing will be held to discuss and respond to any public comments on the report. Based on the comments received, the Draft Report will be rewritten and the final version sent to the USEPA for approval. All comments should refer to the report number (CN 446.0) and must be received by 5:00 pm on January 16, 2017. Please submit comments electronically to Matt Reardon, matthew.reardon@state.ma.us, or by US Mail to MassDEP, Attn: Matt Reardon, Watershed Planning Program, 8 New Bond Street, Worcester, MA 01606.


The Town understands that it is very frustrating to see the algae/cyanobacteria counts going up each week in the West Monponsett Pond and it is more than frustrating to have the Pond continuously closed.

There are many people and groups working on this. The Town was reassured by some recent feedback from the Massachusetts Department of Environmental Protection (DEP). They tell us that the aluminum sulfate treatments applied to the Pond continue to reduce the amount of available phosphorous in the water, so much so that the algae species that relies on nitrogen, rather than phosphorous, is a growing percentage of the algae population. DEP has recommended that the future doses of aluminum sulfate have a higher concentration of this chemical as compared to previous doses.

The Town is working with Natural Heritage/Endangered Species, DEP, SOLitude Lake Management (the firm that has studied the Pond and applied the treatments), and others work out a schedule for future high concentration treatments.

When more information is available, it will be posted on the Town's web site and sent out the Monponsett Pond mailing list.

For more information, visit the Town of Halifax's website.

Because of the test results from November 21, West Monponsett Pond is open for swimming and other recreational uses in which contact with the water is probable. Test results below 70,000 for two consecutive weeks were required to re-open West Monponsett Pond. East Monponsett Pond continues to be open for all uses.

The following table shows algae counts for the spring, summer and fall of 2016. A count of under 70,000 cells/ml (milliliter) is good. If there is a week in which the count goes above 70,000, it requires two consecutive counts of under 70,000 to lift the advisory on not swimming, boating, etc. At this time, West Monponsett and East Monponsett are tested once a week.


Date
Location
Cells/ml
Pond status
May 23, 2016
4th Avenue beach - West Monponsett
23,000
clean result
May 23, 2016
Ocean Avenue beach - West Monponsett
25,000
clean result
May 23, 2016
State Boat Ramp/Route 58 - West Monponsett
28,000
clean result
May 31, 2016
4th Avenue beach - West Monponsett
49,000
clean result
May 31, 2016
Ocean Avenue beach - West Monponsett
53,000
clean result
May 31, 2016
State Boat Ramp/Route 58 - West Monponsett
66,000
clean result
June 6, 2016
4th Avenue beach - West Monponsett
90,000
West Monponsett Pond Closed
June 6, 2016
Ocean Avenue beach - West Monponsett
91,000
West Monponsett Pond Closed
June 6, 2016
State Boat Ramp/Route 58 - West Monponsett
96,000
West Monponsett Pond Closed
June 6, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open
June 13, 2016
4th Avenue beach - West Monponsett
198,000
West Monponsett Pond Closed
June 13, 2016
Ocean Avenue beach - West Monponsett
234,000
West Monponsett Pond Closed
June 13, 2016
State Boat Ramp/Route 58 - West Monponsett
189,000
West Monponsett Pond Closed
June 13, 2016
Route 36 Boat Ramp - East Monponsett Pond
40
East Monponsett Pond Open
June 20, 2016
4th Avenue beach - West Monponsett
293,000
West Monponsett Pond Closed
June 20, 2016
Ocean Avenue beach - West Monponsett
332,000
West Monponsett Pond Closed
June 20, 2016
State Boat Ramp/Route 58 - West Monponsett
300,000
West Monponsett Pond Closed
June 20, 2016
Route 36 Boat Ramp - East Monponsett Pond
Too few to count
East Monponsett Pond Open
June 27, 2016
4th Avenue beach - West Monponsett
339,000
West Monponsett Pond Closed
June 27, 2016
Ocean Avenue beach - West Monponsett
442,000
West Monponsett Pond Closed
June 27, 2016
State Boat Ramp/Route 58 - West Monponsett
402,000
West Monponsett Pond Closed
June 27, 2016
Route 36 Boat Ramp - East Monponsett Pond
900
East Monponsett Pond Open
July 5, 2016
4th Avenue beach - West Monponsett
613,000
West Monponsett Pond Closed
July 5, 2016
Ocean Avenue beach - West Monponsett
632,000
West Monponsett Pond Closed
July 5, 2016
State Boat Ramp/Route 58 - West Monponsett
592,000
West Monponsett Pond Closed
July 5, 2016
Route 36 Boat Ramp - East Monponsett Pond
950
East Monponsett Pond Open
July 12, 2016
4th Avenue beach - West Monponsett
1,174,000
West Monponsett Pond Closed
July 12, 2016
Ocean Avenue beach - West Monponsett
over 1,000,000
West Monponsett Pond Closed
July 12, 2016
State Boat Ramp/Route 58 - West Monponsett
over 1,000,000
West Monponsett Pond Closed
July 12, 2016
Route 36 Boat Ramp - East Monponsett Pond
14,500
East Monponsett Pond Open
July 18, 2016
4th Avenue beach - West Monponsett
807,000
West Monponsett Pond Closed
July 18, 2016
Ocean Avenue beach - West Monponsett
812,000
West Monponsett Pond Closed
July 18, 2016
State Boat Ramp/Route 58 - West Monponsett
682,000
West Monponsett Pond Closed
July 18, 2016
Route 36 Boat Ramp - East Monponsett Pond
14,600
East Monponsett Pond Open
July 25, 2016
4th Avenue beach - West Monponsett
749,000
West Monponsett Pond Closed
July 25, 2016
Ocean Avenue beach - West Monponsett
828,000
West Monponsett Pond Closed
July 25, 2016
State Boat Ramp/Route 58 - West Monponsett
867,000
West Monponsett Pond Closed
July 25, 2016
Route 36 Boat Ramp - East Monponsett Pond
3,000
East Monponsett Pond Open
August 1, 2016
4th Avenue beach - West Monponsett
836,183
West Monponsett Pond Closed
August 1, 2016
Ocean Avenue beach - West Monponsett
869,796
West Monponsett Pond Closed
August 1, 2016
State Boat Ramp/Route 58 - West Monponsett
1,021,957
West Monponsett Pond Closed
August 1, 2016
Route 36 Boat Ramp - East Monponsett Pond
1,754
East Monponsett Pond Open
August 15, 2016
4th Avenue beach - West Monponsett
670,000
West Monponsett Pond Closed
August 15, 2016
Route 36 Boat Ramp - East Monponsett Pond
3,400
East Monponsett Pond Open
August 22, 2016
4th Avenue beach - West Monponsett
423,000
West Monponsett Pond Closed
August 22, 2016
Ocean Avenue beach - West Monponsett
437,000
West Monponsett Pond Closed
August 22, 2016
State Boat Ramp/Route 58 - West Monponsett
518,000
West Monponsett Pond Closed
August 22, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open
August 29, 2016
4th Avenue beach - West Monponsett
340,000
West Monponsett Pond Closed
August 29, 2016
Route 36 Boat Ramp - East Monponsett Pond
400
East Monponsett Pond Open
September 6, 2016
4th Avenue beach - West Monponsett
262,000
West Monponsett Pond Closed
September 6, 2016
Route 36 Boat Ramp - East Monponsett Pond
1,600
East Monponsett Pond Open
September 12, 2016
4th Avenue beach - West Monponsett
1,025,000
West Monponsett Pond Closed
September 12, 2016
State Boat Ramp/Route 58 - West Monponsett
1,115,000
West Monponsett Pond Closed
September 12, 2016
Route 36 Boat Ramp - East Monponsett Pond
300
East Monponsett Pond Open
September 19, 2016
Ocean Avenue beach - West Monponsett
1,417,000
West Monponsett Pond Closed
September 19, 2016
4th Avenue beach - West Monponsett
301,000
West Monponsett Pond Closed
September 19, 2016
State Boat Ramp/Route 58 - West Monponsett
1,157,000
West Monponsett Pond Closed
September 19, 2016
Route 36 Boat Ramp - East Monponsett Pond
1,200
East Monponsett Pond Open
September 26, 2016
Ocean Avenue beach - West Monponsett
1,431,000
West Monponsett Pond Closed
September 26, 2016
4th Avenue beach - West Monponsett
1,292,000
West Monponsett Pond Closed
September 26, 2016
State Boat Ramp/Route 58 - West Monponsett
1,360,000
West Monponsett Pond Closed
September 26, 2016
Route 36 Boat Ramp - East Monponsett Pond
250
East Monponsett Pond Open
October 3, 2016
Ocean Avenue beach - West Monponsett
1,350,000
West Monponsett Pond Closed
October 3, 2016
4th Avenue beach - West Monponsett
98,000
West Monponsett Pond Closed
October 3, 2016
State Boat Ramp/Route 58 - West Monponsett
1,241,000
West Monponsett Pond Closed
October 3, 2016
Route 36 Boat Ramp - East Monponsett Pond
5,700
East Monponsett Pond Open
October 11, 2016
Ocean Avenue beach - West Monponsett
1,668,000
West Monponsett Pond Closed
October 11, 2016
4th Avenue beach - West Monponsett
1,866,000
West Monponsett Pond Closed
October 11, 2016
State Boat Ramp/Route 58 - West Monponsett
2,268,000
West Monponsett Pond Closed
October 11, 2016
Route 36 Boat Ramp - East Monponsett Pond
950
East Monponsett Pond Open
October 17, 2016
Ocean Avenue beach - West Monponsett
1,679,000
West Monponsett Pond Closed
October 17, 2016
4th Avenue beach - West Monponsett
1,450,000
West Monponsett Pond Closed
October 17, 2016
State Boat Ramp/Route 58 - West Monponsett
1,732,000
West Monponsett Pond Closed
October 17, 2016
Route 36 Boat Ramp - East Monponsett Pond
1,500
East Monponsett Pond Open
October 24, 2016
Ocean Avenue beach - West Monponsett
1,586,000
West Monponsett Pond Closed
October 24, 2016
4th Avenue beach - West Monponsett
1,693,000
West Monponsett Pond Closed
October 24, 2016
State Boat Ramp/Route 58 - West Monponsett
1,438,000
West Monponsett Pond Closed
October 24, 2016
Route 36 Boat Ramp - East Monponsett Pond
200
East Monponsett Pond Open
October 31, 2016
Ocean Avenue beach - West Monponsett
127,000
West Monponsett Pond Closed
October 31, 2016
4th Avenue beach - West Monponsett
138,000
West Monponsett Pond Closed
October 31, 2016
State Boat Ramp/Route 58 - West Monponsett
300,000
West Monponsett Pond Closed
October 31, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open
November 7, 2016
Ocean Avenue beach - West Monponsett
44,000
West Monponsett Pond Closed as one sample is above 70,000
November 7, 2016
4th Avenue beach - West Monponsett
32,000
West Monponsett Pond Closed as one sample is above 70,000
November 7, 2016
State Boat Ramp/Route 58 - West Monponsett
148,000
West Monponsett Pond Closed as one sample is above 70,000
November 7, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open
November 14, 2016
Ocean Avenue beach - West Monponsett
2,100
West Monponsett closed; we've had one week of all samples below 70,000 - we need two consecutive weeks to re-open West Monponsett
November 14, 2016
4th Avenue beach - West Monponsett
4,800
West Monponsett closed; we've had one week of all samples below 70,000 - we need two consecutive weeks to re-open West Monponsett
November 14, 2016
State Boat Ramp/Route 58 - West Monponsett
10,900
West Monponsett closed; we've had one week of all samples below 70,000 - we need two consecutive weeks to re-open West Monponsett
November 14, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open
November 21, 2016
Ocean Avenue beach - West Monponsett
4138
West Monponsett Pond Open due to two consecutive weeks of algae counts under 70,000
November 21, 2016
4th Avenue beach - West Monponsett
1177
West Monponsett Pond Open due to two consecutive weeks of algae counts under 70,000
November 21, 2016
State Boat Ramp/Route 58 - West Monponsett
1182
West Monponsett Pond Open due to two consecutive weeks of algae counts under 70,000
November 21, 2016
Route 36 Boat Ramp - East Monponsett Pond
0
East Monponsett Pond Open


Current Mosquito Information


Latest Mosquito Information (November 4, 2016)

As of November 4, Halifax is listed as a "low risk" community for EEE and WnV. The Halifax Board of Health has been notified about a mosquito with EEE (Eastern Equine Encephalitis) in Middleborough (July 12),one in Kingston (August 15) and one in West Bridgewater (August 23). It was found in a Culex mosquito, the Culex restuans. Natural and artificial containers are the preferred larval habitat of this mosquito. It feeds almost primarily on birds but has been known to bite humans on occasion. This species is typically collected from May to October but can be found year round as it readily overwinters in man-made structures. Cx restuans has been implicated as a vector of WNV. Take this bird biter as a warning. People have control over stagnant water in containers: buckets, tarps, tires, etc. Rinse them out, turn them over. Rinse bird baths at least twice a week.

Residents should continue to take precautions including removing all containers with standing water such as accumulating junk in the yard, not maintaining swimming pools and allowing them to sit with green stagnant water, along with toys, tarps and tires.

The Massachusetts Department of Public Health wrote:

Although there has been less evidence of EEE activity this year than in some recent years, the late heat and humidity this summer are perfect conditions for mosquito activity. The peak time for transmission of EEE will continue through at least some of September. The types of mosquitoes most likely to carry EEE are considered to be active dusk to dawn but the timing of that activity can be impacted by temperature, humidity, cloud cover and day length. In addition, active participation in outdoor sports increases our availability to mosquitoes. Physical exertion and sweating may also change individual attractiveness to mosquitoes and may decrease the time that repellents are effective.

DPH is writing to ask you to help us get the word out to residents, schools and athletic groups, that it is important to take steps to avoid mosquito bites. Know the drill – mosquito repellents, clothing and limiting outdoor activity during peak mosquito activity hours. In case they are useful, the DPH wants to remind you of the short PSA videos that it has available online for you to download and use (or link to). They are available at www.mass.gov/mosquitoesandticks.

Also, keep in mind that our residents travel between cities and towns regularly and some of those may travel from areas not familiar with EEE.  They may not be mindful of the importance of preventing mosquito bites.  Please remind them.

To call for ground spraying of your property, call Plymouth County Mosquito Control at 781 585 5450

Individuals can call the Project, between 8:00am and 3:00pm on Monday through Friday, to request that their property be sprayed. The Project’s phone number is (781) 585-5450, fax (781) 582-1276 or mail us at P.O. Box 72, Kingston, MA 02364. To find out where the spray routes are going to be call (617) 582-6219 (during spray season). Plymouth County Mosquito Control Project

For more information on EEE and WNv, please see DPH's site at:



Monponsett Pond - Frequently Asked Questions

What is the enabling legislation that allows the City of Brockton to divert water from Monponsett Pond?

There was legislation approved in 1893, 1896 and 1899 concerning Silver Lake and in 1885 concerning water resources in Rockland, Abington and "South Abington".

The Massachusetts State Legislature approved the enabling legislation in 1964. This was modified in 1981. The MA Department of Environmental Protection modified this slightly to allow for diversion to Silver Lake during the summer months under certain conditions.

The MA Department of Public Works approved a license for the diversion infrastructure in 1965.

Who do I contact to hold a fishing tournament, a boat contest or a similar event on Monponsett Pond?

Contact the Commonwealth of Massachusetts. Permit forms can be downloaded or you can contact David Diotalevi, Access Program Coordinator, 53 Groton Shirley Road, Ayer, MA 01432. Tel. 978-772-4658; Fax. 978-772-9824; Email david.diotalevi@state.ma.us 

How can I obtain a copy of the presentation made by Lycott Environmental in early 2013 concerning algae remediation?

A copy of the presentation is available on the Town's web site.

What studies are available about the natural and manmade water flows in the area?

The Division of Marine Fisheries published a report on the Forge Pond Dam, which is between Silver Lake and the Jones River in 2013. While not specific to Monponsett Pond, because Brockton is allowed to divert water from Monponsett Pond to Silver Lake, Monponsett Pond is mentioned a number of times. The Sustainable Water Management Initiative report concerning Silver Lake, Monponsett Pond and Stump Brook was completed in the summer of 2013.

What records are available for water flows to and from Monponsett Pond?

Diversion data for Monponsett Pond and other bodies of water (1996-2013) - Excel workbook
"[Link]Legend" for columns in the Excel workbook
Flows through the fish ladder at the Brockton Dam on Stump Brook (2013) - Text file

What examples exist of work being done on similar ponds in Massachusetts?

The White Island Pond (a pond in Wareham and Plymouth) Conservation Alliance has issued its brochure for 2013. It contains advice how how residents and others can lower the amounts of phosphorous going into White Island Pond along with a progress report of the work begin done. In addition, the Massachusetts Bureau of Resource Protection (part of DEP) issued a report (2010) on the Final Total Maximum Daily Load of Total Phosphorous for the pond, establishing a benchmark.

How much water can be diverted on a daily basis from Monponsett Pond to Silver Lake? How much water could be diverted downstream via Stump Brook?

According to Princeton-Hydro, the Silver Lake Diversion Pipe can divert a maximum of 40 cubic feet per second (cfs) or 25.8 million gallons per day (MGD).

The maximum amount of water that can be sent downstream using the fish ladder at the Brockton Dam on Stump Brook is 15 cfs or 9.7 MGD.

If the water level at the Brockton Dam is six inches above the height of the dam, then 80 cfs or 51.7 MGD will go over the dam.

If the water level at the Brockton Dam is one foot above the height of the dam, then 200 cfs or 129.3 MGD will go over the dam.

 
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