ENVIRONMENTAL
MONITORING
MANHOLES

DEAN BENNETT SUPPLY
DENVER, COLORADO
1-800-621-4291

Smart Phone Dialable


MONITORING WELL MANHOLES
for Protection of a Monitoring Well

Environmental monitoring manholes are protectors used where surface protection is needed, but access must be maintained to service the monitoring well it protects. We offer Royer Aluminum manholes for smaller diameter monitoring environmental wells, and we offer the Morrison Bros manholes for use on 2" or larger wells in 8 inch, 12 inch and 18 inch round bolt down lid monitoring manholes.

LIMITED ACCESS MANHOLES
with bolt down lids to keep the well protected and secure.
These monitoring manholes are H-20
Traffic Rated for 8000 lbs per tire.

Download Regular Manholes page 81

8" Monitoring Well Protective Manholes to protect access to the monitoring well.

Morrison Bros Monitoring Manholes for monitoring well protection.

These Limited Access Environmental Manholes are offered in 8", 12", and 18" sizes, feature a clearly marked "Monitoring Well" designation which distinguishes them from a standard product fill manhole. These monitoring manholes feature a heavy duty cast iron cover and ring, a fuel resistant gasket to make them watertight, and a heavy galvanized steel skirt to maintain an open area below the lid to work. Two stainless steel bolts are used to secure the lid, limiting access to the monitoring well below. These manholes are traffic rated at 8,000 lbs per tire and conform to H-20 ratings.
  8" x  12" $   69.95 Watertight  8" x  12"  Limited Access Manhole with bolt down lid ( 10 1/8" outside edge x  8" opening x  11 1/4" deep x  15 lbs.  Lid has "Monitoring Well" designation. )8" x 12" Morrison Bros Limited Access Manhole for monitoring wells.
12" x  12" $ 112.00 Watertight  12" x 12"  Limited Access Manhole with bolt down lid ( 14 1/4" outside edge x  12" opening x  11 1/4" deep x  28 lbs.  Lid has "Monitoring Well" designation.)12" x 12" Morrison Bros Limited Access Manhole for monitoring wells.
18" x  12" $ 219.00 Watertight  18" x  12"  Limited Access Manhole with bolt down lid ( 20 1/8" outside edge x  18" opening x  11 1/4" deep x  50 lbs.  Lid has "Monitoring Well" designation.)
18" x 12" Morrison Bros Limited Access Manholes for monitoring well applications.

ROYER  ALUMINUM MANHOLE PROTECTORS
Royer Aluminum manholes for environmental well protection.

Download Royer Manholes Page 82

Royer's Aluminum Environmental Well Monitoring Manholes are for small diameter monitoring wells or piezometer installations. These aluminum manholes have a 6" aluminum skirt along with the aluminum lid and ring. The lid is secured with stainless steel socket head cap screws, and have an Allen wrench supplied to remove and install the lid. A watertight compression seal is provided by a Buna N Nitril O-ring. The lids are clearly marked with "Monitoring Well" designation and "Do Not Fill" warning. There is also a well log pad provided for recording well numbering.

4"  &  6"  ALUMINUM MONITORING MANHOLES

4" x  6" $ 45.50 Royer's Aluminum Watertight Manhole with 4" opening and 6" skirt  ( 5 3/4" outside edge x  4" opening x  2 7/8" unobstructed throat opening x  7" deep. Weigh 2 lbs. )
6" x  6" $ 60.50 Rouer's Aluminum Watertight Manhole with 6" opening and 6" skirt  ( 7 1/2" outside edge x  6" opening x 3 7/8" unobstructed throat opening x  7" deep. Weigh 4 lbs. )


MONITORING SUPPLIES INDEX

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Prices effective January 25, 2012