ML20099G851

Applicant Exhibit A-166,consisting of How Water in Philadelphia Is Treated & Distributed, Dtd 1982

ML20099G851
Person / Time
Site:	Limerick
Issue date:	06/19/1984
From:	PHILADELPHIA, PA
To:
References
OL-A-166, NUDOCS 8411270462
Download: ML20099G851 (17)

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p SOURCES AND DISTRIBUTION Ni ~

y h Where does Philadelphio get its water?

] lj The city pumps one.hoff of its water from the Delowore River, just above the outlet of Pennypock

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, fm e p, 7 Creek. The other half is pumped from the Schuylkill .. ,

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River at two different locations: the Belmont Pumping - I -

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Station on the west side, just below Columbia Avenue Bridge, and the Queen Lane Pumping Station on the east side, just below City Line Bridge. The Belmont 5

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Station pumps from the pool formed by the Fairmount .

Dom, while the Queen Lane Station draws water from ."_

Ni 4 the head of the some pool. L i 5-h bk

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with minor exceptions, oli service is within the city limits.

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i q After treatment and filtration, the major part gN/ ,, -@ .,p. m . '.'.. -% 5 ~%

of the emuent (or output) of the Belmont and Queen -

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Lone Plants is delivered through the distribution system by gravity. This is possible because these plants have kf[/44~.' Ef }" "4

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filtered water basins with water level elevations of [g* j% r J-

' "WWJ 239 and 216 feet respectively. _ , . , b'. ..,[ . M,; _

The other emuents from Belmont and Queen Electronic consoles line the filter goIIery at the Lone-end all the emuent from the Torresdale Plant--

are pumped by stations located at, or near the plants, Queen Lane Water Plant. Consoles regulate the and .some emuents are repumped at six booster flow of water through rapid-sond filter beds

, stations. Pumping helps to maintain the gradients located behind the columns.

J. . ( required for satisfactory pressures and good service of oil points in the distribution system.

Because of changes in consumer demands, and

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Normally obout one-third of plant output is the need for occasional changes in plant operations, it

' delivered by gravity and two-thirds is pumped. Of is uncertain which of the nyer waters, or what com.

the lotter, about 15 % is repumped at the booster bination of them, will be received in some areas along stations. the north. south mid oxis of the city represented by Brood Street. West Philadelphia, however, receives Because of differences in elevation omong city only Schuylkill water.

neighborhoods (o difference of 450 feet, for example, between homes in Roxborough and those in South Philadelphio), the city is divided into ten pressure The preceding is of particular interest to those who districts. The fact that Philadelphic takes its water may be affected by changes in the mineralcontent of the water, since the Schuylkill water contains in solution from three different river sources also makes some about twice the amount present in Delaware water. In the of these districts necessary. 10-year period 1971 1980, the annual hardness of water delivered to distribution from the Torresdale Plant on the Delaware averaged 96 parts per million; annual hardness AREAS WHERE DELIVERED of water from the plants on the Schuylkill averaged 145 parts per million.

Delowore water is delivered generally to those creas of the city east of Brood Street, while Schuylkill The total population served is 1.69 million. To the'se water reoches consumers west of Brood Street. There customers the Water Department distributes an average ore some exceptions, however, to this pottern of '>f 345 million ga!!ons daily, distribution.

Thus Delaware water flow: west of Brood In ddition, the department delivers 11 million gallons of water daily to the Bucks County Street to some neighborhoods south of En.e Avenue.

it is also dehvered to West Ook Lone and Chestnut Water and Sewer Authority for distribution in lower Hill, and it may mix with Schuylkill water in the Buch County.

vicinity of East Park Reservoir before the lotter water The distribution system contains 3.200 miles of enters centrol city. Schuylkill water may also cross the pipes of various sizes, from three inches to seven feet N. Brood Street boundary: it serves the area bounded nine inches in diameter. About 142 miles of this pipe by Lehigh, Wyoming, and Kensington Avenue, and are three feet or wider in diameter. There are 78,000 Roosevelt Boulevard. volves and over 25,000 fire hydronts.

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B1 sides th) regular distributirn system, thsre Nituti stdimsntation takes place in a large raw-is a high prsssure firo systIm c:vsring cent:r city and witer reservoir. whirs some susp:nded matter that port of north centrol Philadelphia lying east of settles out as the water moves slowly through.

Broad Street and south of Lehigh Avenue. This is The'second step in treatment is chlorination. The s composed of 63 miles of moins,1,900 volves, and chlorine is added to the water to destroy taste and

( ) 1,050 hydrants, together with two pumping stations that deliver water of pressures up to 300 lbs. per sq.

odor-producing materials which are chiefly organic matter. This may include the wastes of industries as in. One station is located at Delaware Ave. sue and well as those of natural origin.

Race Street; the other at 7th Street and Lehigh Avenue.

The third step is injection of other chemicals into MODE OF TREATMENT the raw water as it passes under a chemical or pre-treatment building. At this pcint. alum or ferric Philadelphia's three water treatment plants are chloride may be added to promote the later modern. The Torresdale Plant was completed in 1959; formation of " floc." and chemicals such as carbon or the Belmont Plant in 1965; and the principal facilities sodium chlorite may be used to control taste and of the Queen Lone Plant in stages - 1954, 1960, odor.

1971. The plants are of the rapid.sond filter type, with The fourth step is for the chemical-laden water to automatic and semi.outomatic controls, it is planned pass through small basins, where the chemicals and to bring all the plant treatment processes under com. water are mixed for more than a half-hour by giant puter control within the next few years. . revolving paddles. The mixing causes the formation of " floc." tiny red or brown granules. The flox will Daily output of the water treatment plants. in enmesh suspended impurjties in the water.

millions of gallons daily. averaged as follows in fiscal 1980: When necessary, lime is added to the water to neutralize ocidity and create optimum conditions for B elmon t . . . . . . . . . . . . . . . . . . . . . . . 63.8 the formation of floc.

Q u ee n Lane . . . . . . . . . . . . . . . . . . . 98.0 Enmeshment of suspended particles by the floc Torres dale . . . . . . . . . . . . . . . . . . . . . 214.6 takes place in large sedimentation basins to which

, the water next flows. In these basins the water remains Although there is some variat. ion at the plants. quiescent for two to four hours, and the floc settles

. the . treatment process comprises o,f natural sed - to the bcttom, taking with it more than 90% of the

. mentation. pre-chlorination, chemical treatment. suspended impurities. This prepares the water for flocculation. sedimentation, filtration, and post filtration.

1 chemical treatment.

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_ . . --' - -. g g Water sparkles as it flows off the sedimentation basins of the Belmont Water Plant to enter the filter building (left background). The sosins settle out 90% of the impurities in the water.

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l TORRESDALE: (1) Settling by natural sedi-Q The water is then filtered through beds of sand mentation (2) chlorination,(3) application of chem-V and gravel, which remove all particles that remain' after the settling period. icals - ferric chloride with lime for pH adjustment.

As the final step in treatment, the chlorine chlorine, dioxide, and carbon, (4) rapid mixing of content of the water is adjusted to ensure safety,and chemicals with water, (5) slow m,x,ng ii of chemicals ammonia may be added to counteract chlorinous with water to form " floc,"(6) settling,(7) chlorination tastes and odors. At various steps in the treatment to free chlorine residual, (8) rapid sand filtration,(9) process, additional chemicals may be used, or the post treatment, including chlorinaticn, fluoridation usual chemicals replaced by others.This is governed and ammonia, by the changes in the condition of the raw water supply. Water w.thdrawn i from the East Park and Oak Lane Reservoirs is rechlorinated before entering the To help prevent tooth decay in children, flour- distribution system. East Park water is treated with

. ide is is also added to the water. chlorine dioxide through the spring, summer and Because treatment steps differ slightly at the autumn to control algae.

plants, the successive steps are summarized below:

QUALITY CONTROL: The Water Department BELMONT: (1) Settling by, natural sedeminta- guards the quality of its water from the river to the tion for 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />,(2) pre-chlorination,(3) application home faucet. Along the rivers, raw water samples are of chemicals-alum with lime for pH adjustment,(4) collected by boat. In the plants, laboratory personnel rapid mixing of chemicals with water,(5) slow mixing check the water at every treatment stage, and this is of chemicals to form " floc, (6) settling, (7) chlon, nation, (8) rapid sand filtration, (9) post followed by regular sampling of 85 points i.1 the treatment, includ,ng i chlonnation, zinc phosphate, distribution. system. Laboratories make 170,000 wet fluoridation, and ammonia. chem.ical tests on water each year, and the equivalent of hundreds of thousands of other tests by electronic QUEEN LANE: (1) Settling for 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />. (2) pre- testing devices.

' chlonnation and fluoridation, (3) application of lime for pH , The city's drinking water,in its finished form, O adjustment, and chemicals carbon,(4)

- ferric rapid mixing chloride, withof meets or surpasses all of the quality standards of the chemicals with water, (5) slow mixing of chemicals U. S. Environmental Protection Agency under the t with water to form " floc,"(6) settling, (7) chlorination. Safe Drinking Water Act.

! (8) rapid sand filtration, (9) post treatment. including zinc phosphate and ammonia.

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.b Modern laboratories ensure pure. safe, and palatable drinking water. They make 170.000 " wet chemical" tests and hundreds of thousands of instrumental tests on water samples yearly. ,

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A Philadelphia's water system began with a bold .

experiment. g.g- g,;.fr.- ;s:$

At a time when steam power was finding its first c.p .-C. ~

uses in America, the City Fathers opened two steam b' 3."

pumping stations in January,1801 These water T ,*'

works represented the first large scale application of ' .

steam pumping to water service in this country.  ! g ,

s The new system was the brain child of Ben- ,

e jamin Henry Latrobe, an immigrant British engineer, ,, E E l [kb., i di who later designed the Capitol in Washington. JSI - -

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. engine raised it about 40 feet into a brick conduit, which ran down Chestnut Street to Broad 1. ,et and b . . / ". , . m 2

h _m we W%,- s then turned north to Centre (now Pen .i wuare. ..--- . - - - - - :e - - --

The other station, situated in the middle of kk p TM Centre Square where City Hall now stands, received the water and raised it by steam power to two wooden Q _

• - - M.-~~~@.3 tan.ks that were 40 feet above the ground. These Dj , . -- - I f tanks, which held 17,660 gallons, were the city's only.

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reservoir.

Latrobe's stations operated until 1815. Ti e The Cef tre, square Works was one of two stearn-Centre Square buildings were taken down in 10F Powered purnping stations opened by Philadel-Phia in 1801 to supply water.

OLD FAIRMOUNT WATER WORKS By 1812 the City Fathers had grow .n Ated with the expense of keeping the wooden p' mps through double-acting force pumps which had been running at Centre Square. Water service tot was designed by Frederick Graff.

Q . frequently interrupted by ,nsufficient i storag.. The first water turbine (a French invention by As a result, the City built new water works at Fourneyron) was installed at Fairmount in 1851, and "Fa,ir Mount," which went into service on September by 1871 all of the paddle wheels had been replaced by 7,1815. Water was raised to an earthen reservoir on turbines. Fairmount Dam was rebuilt in 1842-43.

the hill now occupied by the Museum of Art, from The Fairmount Station continued to supply which it flowed by gravity to c,ty i houses, ortions of the city until March,1911, when new At first, two steam engines were used to lift the filtration plants took over all water service.

water. Unfortunately, the boiler of one of the high pressure engines burst in 1818, and the City Fathers 19TH CENTURY PIPING turned to much cheaper water-wheel power. When the Centre Square Station went into A dam was thrown across the Schuylkill River to service in 1801, Water flowed from it through wooden form a fresh water pool, and new paddle wheels and logs to reach center city homes. These logs were pumps were built just below the pool level. River bored through the center, and joined end to end by water was conducted into a forebay on the back and iron bands and caulking.

east side of the mill buildings, and it was then led The wooden mains, however, leaked badly arid through fiumes to tum the wheels. constantly, and by 1832, the city discontinued laying The new water-driven works - the first of its them. Up to that time it had laid 241,604 feet.

type built for public water service in any large Cast iron mains gradually replaced the oldlogs.

American city - went into operation July 1,1822. The first 400 feet of cast iron pipe was imported from From the beginning of the Fairmount Station England in 1817, and by 1852 the city proper had and throagh much of its subsequent evolution, 440,403 feet of cast iron mains in service. By the Fredenck Graff, eminent engineer, was the guiding 1850's wooden mains were no longer in use.although spint. His . son, Frederick, Jr., carried on his work af ter many of them were not actually removed from the his death in 1847. ground.

As the city grew, additional paddle wheels were Philadelphia's water system today has 3.200 installed z.t Fairmount, and additional basins were miles of mains, most of them cast iron but with an I created on the neighboring hill. By 1842, there were increasing proportion of ductile iron and steel pipe. A gd eight paddle wheels supplying water to four basins few old mains laid in the 1830's and 1840's are stillin service.

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,/"; EARLY 20TH CENTURY FILTRATION Notable were the treatment plants. Equipped t with semi-automatic controls, the new Torresdale D / The chief method of purifying water in 19th Plant was the largest " push-button" rapid-sand plant century Philadelphia was to provide for quiet periods in America when it was opened in 1959.Similar plants in the reservoirs. This allowed suspended materials were completed in the 1950's at Queen Lane and to settle to the bottom. Belmont.

As the century wore on, however, the water During the 1950's, the last steam pumps were from the Delaware and Schuylkill Rivers became in- removed from pumping stations, and new electric creasingly polluted. Tastes and odors appeared, and pumps wers installed.

the typhoid fever rate rose in the city.

Between 1858 and 1899, seven special studies LOAD CONTROL CENTER were made of water sources and treatment. As a Keeping watch over the distribution of water to result of the 1899 teport, the City Councilauthorized Philadelphians is a modem system of electronic the construction of filtration plants. controls. The multi-million dollar system, known as Five new filtration plants - the biggest and the Load Control Center, was one of the first in this finest " slow sand" plants in the world - went into country when it was inaugurated in 1960.

service between 1902 and 1911. The new plants The high speed intelligence system constantly, included extensive acreages of sand beds, where the monitors water pressure, rates of flow, levels, etc. in river water was filtered. This filtration was preceded water mains, reservoirs, and pumping stations by cleansing in pre-filters of the coke or sponge type, throughout the City. Data is picked up by electronic and/or, later by setthng in raw water basins. sensing devices at 120 points in the water distribution Filtration of Philadelphia's water caused a grid and is relayed by a ring of seven microwave marked drop in typhoid deaths. These quickly fell towers to the control center. Complex equipment

.from an annual average of 60 per 100,000 residentsto then deciphers the incoming signals, translating them automatically into meaningful information on only one-fourth that number.With the introduction of

, chlorine treatment in 1913, typhoid was rapidlywiped typewritten sheets and digital displays.

-0 There are no operating personnelin any of the f 16 pumping stations. By simply pushing a button,the THE REBIRTH OF THE 1950*S operator at the control center can start or stop pumps, and open and close valves in the remotely As the years went by, the lack of public funds handicapped the city's water system. Its proud slow located stations.

sand plants gradually deteriorated. Though a few rapid sand filters were introduced at the Queen Lane PROTECTING WATER QUALITY and Belmont Plants in the 1920's and other modifications were made, the plants were unable to in 1976, Philadelphia became the first American keep up with growing water demands. This was also city to build a pilot plant to determine the best i

true of the old steam pumping stations. methods for removing trace organics, and tastes and odors from water. Located in the Torresdale plant, The city's drinking water had become safe, but the pilot facility used both regular treatment and non-I tastes and odors persisted. To correct this, activated convent,onal i treatment such as carbon filters, ozone, carbon, czone, chlorine dioxide, and other treatment

. polyelectrolytes, and macroreticular resins. A Trace chemicals were adopted in the late 1940's and early 1950's. There was an immediate improvement in Organics Laboratory was also built at Torresdale to monitor the results of the tests.

water quality.

With the creation of a self-supporting Water To protect drinking water from taste and odor causing algae, the department began to cover its Department in 1952, the long needed funds became open reservoirs. In 1975-76,it placed floating covers available. The department began a $217 million

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construction program (1952-1976).

on the north and south basins of the Oak Lane Resero,rs, i and in 1981, the department's contractor To provide better water and meet risin9 began installing 4 million square feet of synthetic demand, the department built a network of modern rubber to line and cover the north basins of the East treatment plants, pumping stations, covered reser* Park Reservoirs. When completed. this will be one of voirs, and hundreds of miles of new mains. the largest municipal fining / cover sites in the world.

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The operator at the console of the Load Control Samples of treated Water, periodically analyzed for Csnter can control 16 remote pumping stations and trace organics on an automated gas chroma-m:nitor Water pressure, rates of flow, and levels of tograph/ mass spectrometer system, are found to raservoirs throughout the city. meet all federal standards.

WATER SYSTEM CAPACITIES - 1982 PLANT TREATMENT CAPACITIES (in millions of gallons daily)

RATED PEAX RArt BELMONT PLANT 78 los OUEEN LANE PLANT 120 150 TORRE5 DALE PLANT 282 423 PLANT RETENTION CAPACITIES PUMP!NG STATION CAPACITIES (in melhons of gollons) (in millions of gallons daily)

TOTAL TOTAL l BELMONT Two 36.MG pre.sedimentat.on basins 72 PLANTr Four sed.rnentation bas ns 14.2 RAW WATER: &elmont Seorion (Schwylkill) 140 Three Citered water basins 38.2 Owe *9 Lone Storio" (Schuylkill) 200 Filtered water clear well 1.3 Torresdale Stot.on (Delaware) 480 177 FILTEtED 1. Treated 5:hwylkill Water OUlfN LANE Pre. sed. mentation bosin elmet High Service ro6m 42 PLANT Fove 3.MG vpper serrling bos.ns 12 nenW oester to on 8.5 Four 3.MG tower serrling botins 12 90

" * "" '#" 78 Four Citered water basins Oveen tone High Service Storion 77.5 Rcaborough High Service Station 4$

TotatSDAtt Pre. sed. mentation basin 176 PLANT, 40 2. Trected Delowere Water Four 10.MG sed.mentat.on basins ** " " ' ' ' ' "

Five Citered water bos ns 193 Lordner Poin? Station 240 Cok Lone H.gh Service 5'oeion 50 To<resdole H.gh and Low Service 263

. 5,et.on (200 MGo low.

OTHER(en RET.ENTION CAPACITIES m 6hons of gollons) 80 MGD high)

TOTAL w,,, oak ton, gen,,,, $,,, ion 27.$

UPPgt Filtered water basine 25.6 POX 80 ROUGH, HIGH Fairhill Station 21.6 PRES $URE: Roce 5 reet Stat;on 21.6 LOWit Filtered water basins 3 II'*""F'"*''"'" '., 15.000 s oHeas eer m'av'el '

ROXBOROUGH NOTE: At each stage, the combined capacitiu of the OFEN test Park tr.I'e'ed water) 677 untter system facilities (ss-hether treatment plants, re<er.

l tt$ttvo\es. Ook Lone (Citered wo er) 70 roirs. or pumping stations) are rnuch greater than au erage daily demand by consumers. This enables the trater STAN;>\pis. Two S.MG Somerson tanks 10 Departinent to meet emergendes, to supply peak needs Two S.S.MG Rosborough tonks 1I at certain hours or seasons, no.d to continue operation Foz Chase tank 1.5 1

uAen some facilities hate to be tal.cn out of sersice.

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QUEEN LANE WATER TORRE$ DALE WATER -

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SEDIMENTATION BASIN _

176 M.G. Cop. m r TORRE5 DALE LOW LIFT 4 PUMPING STATION 360 M.G.D. Cap.

ElGHT RAPID MIXERS A 20 SLOW MIXERS FOR FLOCCULATION 45 Minutes O '

FOUR SEDIMENTATION BASINS 40 M.G. Total Cop.

94 RAPID SAND 2W Hours FILTER BEDS c

282 M.G.D. Roted Cap.

FIVE FILTERED WATER 1

BASINS  !

\

TORRE5 DALE FILTERED 193 M.G. Total Cap.

WATER PUMP!NG STATION High Service Low Service 63 M.G.D. Cop. 200 M.G.D.

LAPDNER'S POINT HIGH SERVICE PUMPING STATION 240 M.G.D. Cap.

CHE MIC ALS APPLIE D

-Ferric Chloride. Isme. C.r006 Ch80 fine. ChlOhne deos de

-Chsoriae or Chloriae diosioe

-Fluoride Chlorine. Chlorine dicside.

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O v TORRESDALE FILTERED WATER PUMPING STATION LARDNER'S PolNT HIGH SERVICE PUMP!NG STATION High Service Low Service 80 M.G.D. Cop. 200 M.G.D. 240 M.G.D. Cap.

' I 1 P i-DISTRIBUTION DISTRitUTION DISTRitUTION  ;

High service pumps supply Pres. Low service pumps supply Pres- Supplies Pressure Districts 2, 3, sure District I with overage of sure Districts 2, 3, and 4 with and 4, and Fox Ciase and ook P 21 M.G.D. onnvolfy. Also supply overoge of 35 to 40 M.G.D. Lone Stations, with combined E 11 M.G.D. to Bucks County annvolly. overage of 145 M.G.D.annvolly.

, w .

. f r. .

i.-

OAK LANE RESERVOIR I FOX CHASE BOOSTER l'

'. PUMPING STATION North Bosin

% South Bosin p '

'. 25.3 M.G.D. Cop. 70 M.G. Total Cap. .

I E 1 P I.

.. , T.

- , I . ' .*

1 r  !,

DISTRIBUTION ,

Supplies Pressure District I with '.

overage of 11 M.G.D. onnvolly. DI5TRIBUTION '

Supplies Pressure District 8 ond West Cok Lane Station with -

OAK LANE BOOSTER Combined overage of 17 to 19 PUMPING STATION y M.G.D. onnvolly. Pressure Dis.

trict 8 is also supplied by Queen 50 M.G.D. Cap. Lane H.S. Pumps and upper Rox.

1,8 borough gravity.

1 1 r.

e / !q...Y

• Q'**%l* s p,A () 1

'~. ' .-g a; 3 y

/3 WEST OAK LANE BOOSTER 9e'* f . PUMPING STATION 4

!s i pressure Disirict. 27.5 M.G.D. Cap.

4 p .

I 1 P y

D 15 T R l t U T l O N CHEMIC ALS APPLIED Supplies Pressure District 9,10, with 8 to 9 M.G.D. annvo!!y. A-Socium nypochlorite ammonia .

__.en_-,,,.,.v--.

( nr *L ' 3 byJ_,4, ,;  % -: h~=3" , ,.* .7.p aQ pi;;,

i @n ~. - -. . 'j:: '

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i ,,,,,,,,,,,o,unia-a'aa'""" Schuylkill River o

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OUEEN LANE RAW WATER PUMPING STATION

'. 200 M.G.D. Cop. .

.- SEDIMENTATION BASIN  !

^ 177 M.G. Cap.

i 5."  !

t :,. - -

n g- I t c; -

f'o2I FOUR RAPID MIXERS r". 30 Seconds &

r r 24 SLOW MIXERS FOR FLOCCULATION

.'. 45 Minutes

s

, v.. .

f- . FOUR UPPER AND FOUR ,

LOWER SEDIMENTATION d[:P- -

BASINS

!~ 24 M.G. Total Cop. p 40 RAPID SAND jy . 3% Hours F m R BEDS  ?

e lr'N 120 M.G.D. Roted Cop.

I

^

THREE FILTERED WATER BASINS South North 0*" *

• QUEEN LANE HIGH SERVICE 90 M.G. Total Cap.

PUMP!NG STATION +

EAST PARK 77.5, M.G.D. Cop.

' f RESERVOIR D 15 T R I B U T I O N 3 r Supply Pressur e D; strict 4 with 60 to 65 ta.G D. onn,,,olly.

DI5TRIBUTION

$wppl.es Pressure D; strict 8 w.th to i overcge of 10 #A G.D. onnwally. 3 y

,f , ; ,, -

Pressure District 8 is also swp.

,*.- . /, plied by Ook tone Booster

• g ^t,,,' . . . ' , , . ~ ',,2 Pwmps and Upper Rosborowgn

• • '^" * '

grovity.

5,' ',... 4' , ' ,f CHE MIC ALS APPLIE D A Chlorine. time. carbon.

7 6

73 g

terr.c cnior.ce, fluorice .

3 l Preneure Districts DI5 7 RIB UTIO N B Chlorine ammonia .

C Zine phospnate j 4 Swpp' es Upcer Remborowgm Fil-tered Woter Boser's with overege 4-i of 22 to *3 !A G.D onnworly.

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s L QUEEN LANE HIGH SERVICE CHEMICALS APPUED PUMP!NG STATION l'

A --chlorine  !-

77.5 M.G.D. Cop. j,

.p f..: - ,

-  ?. -

A .'-

A ROXBOROUGH UPPER ROXBOROUGH LOWER ROXBOROUGH [Y .

HIGH SERVICE 2 FILTERED WATER BASINS '

7 FILTERED WATER BASIN I'5

^"~

PUMP!NG STATION 45 M.G.D. Cop.

25.6 M.G. Total Cap. 3 M.G. Cop l.'

r.

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DISTRIBUTION DIS T RIB U TIO N Ig ;',. ;

To Pressure District 8 loiso sup. To Pressure District 7. 3

".,' plied by Queen Lone H.S. and f.U.'

Cok Lone Booster Pumps). F.? '

COMBINED DISTRIBUTIDN Averages 12 M.G.D. annwally TORRE5 DALE WATER V ,

p 1 P OAK LANE BOOSTER to PUMPlNG STATION '

50 M.G.D. Cap. } ,,..r r e( , y.l

,-.r ,. ./ ,

,12

,q-.1,,

,f4 /

3 1 P 7 7, ,/

e: " " . j .

,e -

WEST OAK LANE S Pressure Districts  !

D l 5 f it 18 U T l O N BOOSTER e supply overage of 20 M.G.D M PUMPING STATION i onnvolly to Pressure Districts 9 -

p and 10. About 8 to 9 M G D. 27.5 M.G.D. Cap.

of this is from West ook Lone, and the rest from Rosborough Pumps.

015TRIBUTlON CHESTNUT HlLL BOOSTER To Presswre Diser.ct 10 No water

' PUMPING STATION & hos been d,5,ribwied from the Ches'nu t Hill station for severol 8.5 M.G.D. Cop. yeo,s 5 ot.on .s used for stond.

by 14 -

BELMONT RAW WATER TWO SEDIMENTATION Schuylkill River ,,,,,,,,,,,....+ PUMP!NG STATION BASINS m 72 M.G. Tetal Cap.

140 M.G.D. Cap.

A i

I.-

i,-

FOUR SLOW MIXERS SIX RAPID MlXERS FOR FLOCCULATION I

' ,' 30 Seconds . ._

42 Minutes l-

. i.  :

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1 r .-

FOUR SEDIMENTATION

• " , ,s

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,. .-"}- s

^ -

- BASINS

. ,,,,,.. ( 4,,j3

7

-

• 14.2 M.G. Cap. (

'/i3 4 to 4.7 Hours .

~

,  : j Pressure Districts 3 y

! 26 RAPID SAND ,

' > WEIR CHAMBER 78 M.G.D. Roted Cop, m

m C , ,

'+

BELMONT HIGH SERVICE THREE FILTERED CLEAR WEL PUMPlNG STATION q WATER BASINS 1.8 M.G. Cap. 38.2 M.G. Cop.

I 42 M.G.D. Cap..

f 1

I 1 f DIST RIB UTIO N CHt ulC ALS A PPLit o O $$ppl.es overage of 13 to 14 M G D. to Pressure District 6 a _aiom ..me c.,oon enio,.ne

'""*'8''8' 8 -Chlor.ae DI57 aI8 UTIO N Suppi.es over::ge o' 50 M G D

,, p,,,,,,, g,,,rict 5 annvolly.

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