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August 1st 2010 |
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Public Works >
Water Pollution
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617 Bearse's Way, Hyannis, Ma. 02601
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Supervisor:
Telephone:
Fax:
Office Hours: |
Peter Doyle
508-790-6335
508-790-6325
7:30a.m. to 3:30p.m. |
Where
our water comes from
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Waste Water Facilities
Plan |
Waste Water Treatment Process |
Water:
Where Does It Go? |
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The portion of the groundwater system from which water supply
wells draw their water are called Zones of Contribution (ZOC).
ZOC's are regulated and controlled to protect the public from
adverse impact on the quality of out drinking water supply.
ZOC's cover more than 20 % of the Town Barnstable.
Zones of Contribution (ZOC) are subdivided into three
categories. Zone I, II, III. Zone 1 is a 400-foot protective
radius around public water supply wills. Zone II is that portion
of the groundwater which contributes water to a well under the
most severe pumping (pumping 24 hours a day at full capacity)
and recharge conditions (no precipitation for 180 days). The
figure below illustrates Zone IIs. Zone III is all areas up
gradient of Zones I & II.
The water supplies within ZOC's are basically replenished by
either rain/precipitation or water discharge by residents
through septic systems or irrigation. Over 85% of the Town uses
private septic systems for wastewater disposal, accounting for a
large portion of wastewater/irrigation recharge. To put this
into perspective, precipitation accounts for 60% of recharge,
the treatment plant accounts for 2% or recharge, and private
septic systems and irrigation account for 38% of recharge. Thus,
the water from our private septic systems, lawns, gardens,
parks, and golf courses, that filters back into our groundw3ater
represents a significant portion of out drinking water supply.
This is why it is vital to keep chemicals, oil, and other toxics
out of our septic systems and to reduce or even eliminate the
use of pesticides and fertilizers.
Four water suppliers provide public water within six of the
seven villages of Barnstable.
They are as follows: |
Water
Suppliers |
Villages
Served |
Number of
Wells
(existing) |
Permitted
Capacity
(gallons per minute) |
| Barnstable Fire District |
Barnstable |
4 |
2,450 |
| Barnstable Water Company |
Hyannis |
12 |
8,100 |
| Cotuit Fire District |
Cotuit |
5 |
3,050 |
| C-O-MM Fire District |
Centerville,
Osterville, Marstons Mills |
19 |
9,515 |
The figure does show a potential future Zone II for West Barnstable which parallels Route 149, but at this time no public water service is available in West Barnstable. The northwest portion of the Town is by far, the largest area without public water supply. Areas in the northern portion of the C-O-MM Fire District also lack public water supply. There are also isolated areas in Osterville and around Lake Wequaquet where public water is not available. Residents in these areas use small private wells for water supply.
Created: 11/25/2008 12:43:12 PM
Updated: 9/4/2009 3:21:33 PM
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