GLENDALE UTILITY DISTRICT

The Glendale Utility District water system consists of approximately 80 miles of water lines (in sizes ranging from 1" to 12"), two 500 G.P.M. water wells, a 150,000 gallon elevated water tank, a 6,000 gallon hydropneumatic water tank, and various gate valves, hydrants, and check valves. The system is currently valved off into two separate systems: the South System which includes all of Glendale and most of the rest of the system, and the North System which consists of the area along Eatonville Road from the North Forrest School to Nubb Rainey Road and includes some of the lateral water lines off of that water main.

The South System is served by the elevated water tank at Mary Magdalene Road and the North System is served by the pneumatic tank at the North Forrest School. As a back up the North System is also connected to the South System by a series of check valves which will allow the elevated water tank at Mary Magdalene Road serve the North System in an emergency. However, this will be at a much lower water pressure than usual.

TANKS:

	Capacity Gal.	Overflow
Mary Magdalene Road Tank	100,000	360'
Pneumatic Tank	6,000	456'
	106,000

WELLS:

North Forrest School	2 @ 500 G.P.M. Wells
TOTAL CAPACITY	1,000 G.P.M.

LINES:

1˝ inch line	1,911	ft
2 inch line	85,227	ft
2˝ inch line	25,924	ft
3 inch line	44,902	ft
4 inch line	57,364	ft
6 inch line	109,163	ft
8 inch line	37,785	ft
10 inch line	34,734	ft
10 inch line	859	ft
TOTAL	395,958	ft

TOTAL CUSTOMER CAPACITY OF THE GLENDALE UTILITY DISTRICT

NOTE: The system is not currently capable of achieving this total customer capacity as it is split into two systems:

North System

Pneumatic Tank [6,000 gal.]
No Wells
ą150 Customers
Customer Capacity =

South System

Mary Magdalene Road Tank [150,000 gal.]
North Forrest School Wells [2 @ 500 g.p.m.]
ą1,300 Customers
Customer Capacity =

As you can see the majority of the customers are served from the Mary Magdalene Road tank with a small number of customers on the pneumatic tank at the North Forrest School. The two systems are connected by the means of check valves. These valves will allow flow in the uphill direction but will not allow flow in the downhill direction. In the case of Glendale Utility District this means that the area along north Eatonville Road from the North Forrest School to the intersection with Nubb Rainey Road is on the uphill side of the check valves. The check valves will allow flow in the uphill direction allowing for some flow in an emergency (if the pneumatic tank is out of service or in the case of a large fire), however, this flow will be at a much lower pressure (approximately 20 psi less than normal pressure). This means that the North System will be mostly incapable of providing fire flows and any other extraordinarily large flows in the case of an emergency.

Another problem is that the Health Department requires that there be elevated storage to meet 50% of the daily demand. The existing daily demand in the Glendale Utility District is 580,000 gallons and the existing elevated storage is 150,000 gallons (the pneumatic tank does not count as elevated storage). Therefore, an increase in elevated storage of 140,000 gallons is required.

Also note from the results of the hydraulic analysis (graphically illustrated on page 4 of this report) there are regions of significantly low pressure in the area of the intersection of Nubb Rainey Road and Peps Point Road, in the areas at the end of B&B Loop, and also in the Schaller Road area.

Because of all of these conditions we recommended four years ago that the Glendale Utility District begin a program of updating lines in the affected areas and getting a new tank installed in the north part of the system. This program has been followed up on and we are currently constructing a new tank at the North Forrest School, installing a new well at the Mary Magdalene Tank site, and installing new water lines along Peps Point Road, Nubb Rainey Road, and B&B Loop. Also, the District has already completed an upgrade of the water lines in the Schaller Road area.

EXISTING SYSTEM HYDRAULIC ANALYSIS RESULTS

Legend:

White < 20 psi

Yellow 0-20 psi

Magenta 20-35 psi

Green 35-50 psi

Light Blue 50-65 psi

Grey 65-80 psi

ONGOING IMPROVEMENTS TO EXISTING SYSTEM

Replace existing pneumatic tank at the North Forrest School with a 150,000 gallon elevated tank [by Industrial Tank & Tower]	$285,500.00
Install lines in Schaller Road area [by Utility District] (completed)	ą$50,000.00
Install lines along Eatonville and Nubb Rainey roads [by Utility District]	ą$50,000.00
Install lines along Peps Point Road, B&B Loop, and at North Forrest School [by Bowie River]	$73,635.54
Drill new well at Mary Magdalene Road tank [by Griner Drilling Service]	$314,000.00
TOTAL FOR ALL IMPROVEMENTS:	$773,135.54

REVISED SYSTEM SUMMARY:

After it was determined that there were areas of low pressure showing up on the hydraulic analysis we went through and determined what would be necessary to resolve these problems. The Glendale Utility District decided that it would be necessary to upgrade some water lines, install a new tank at the North Forrest School, and drill a new well at the Mary Magdalene Road site.