Milford chronicle., 1951-11-16

] Wastes.
a. Thn charges for collection and
treatment of industrial wastes dis.
charged into the City sewers shall be
made IN accordance with General Or
dlnance No. 50 dated November IS
/ 1913, City of Milford. In addition
thereto, further charges shall be lew
1 ed for suspended solids, BOD, and
/ chlorine demand in excess of the
! average suspended solids, BOD, and
/ chlorine demand of normal domestic
! sewage. Normal domestic sewage
| shall be considered as having the fol-
lowing concentrations:
Cd BoD-SOO parts per million
CD Suspended solids-sOO parts per
CD Chlorine Demand-2O parts per
b. In. order to determine the addi-
tional charge for concentration of in
9ustrlal wastes above that of normal
domestic sewage, the following for
m9la shall be used.
TAG. y + X TBOD-2OO) y Ont901
* I(S.S.-30O) .OO124I
r X L(C.D.-20) .12l
TAG. = Total Additional Charge
Flow in million gallons
per quarter S34
Cost Factors Used
BOD =S.OO1S2 per pound
Solids =S.OOI24 per Mound
Chlorine
Demand SIP per pound
SECTION .. Methods Of Measuring
volume and Concentration.
a. whenever a person purchasing
aI water used from the City of Mil
Iofd discharges industrial waste 10
the City Sewer System, the volume of
water purchased shall be used as a
measure of the quantity of industrial
waste discharged.
o. Whenever a person purchasing
water from the City of Milford and
1ischarging industrial waste to the
CITY Sewer System also discharges
unpolluted cooling water to either a
separate storm sewer or other outlet,
an allowance for the amount of water
so discharged shall be made in com
putting the sewer charges. The per
son so discharging cooling water shall
at his own expense install a meter or
meters, as required, to indicate ac-
curately to the satisfaction of. Conn
Gil the amount of water claimed as a
credit.
C. whenever a person using a pri-
Vate water supply discharges indus
tr1al wastes to the City Sewer System,
the charges for such discharge shall
De in accordance with General Ordi-
nance No. SO dated November Is, 1949
such person, however, shall install
at his expense, either a water meter or
meters as may he required to measure
the total volume of water used in the
industrial plant; or shall install, at
ms expense, a meter on the sewer
line leaving the plant so as to mea-
sure the entire flow of waste discharg-
ed to the City Sewer System No
meter Tor measurement either of the
water or sewage shall he installed un-
III a plan for such installation is sub
mitted to Council and approved as
satisfactory. All meters or other Yl1ea-
surfing devices installed or required
to be used under the provision of
this ordinance shall be under the con-
troll OF Council. The owner of the
property upon which such measuring
device is installed shall be respon-
sible for its maintenance and safe
keeping; and all repairs thereto shall
De made at the Owners expense,
whether such repairs are made neces-
Sary by ordinary wear and tear or
other causes. Bills for such repairs
if made by the City of Milford, shall
be due and payable at the same time,
and collected in the same manner as
are the bills for sewer services: such
bills from and after their due date
shall constitute a lien upon the real
estate served by these facilities and
shall have the same priority and su-
periority as the General Tax Lien of
the City.
d. Council shall be responsible for
the reading of water and iOr sewage
meters when installed i'm industrial
establishments. Where, in the opin-
ion OF Council, it is not necessary TO
install meter, measurements of the
discharge to the sewer shall he made
quarterly by the City; and the mea-
surements so made shall he used for
determining the sewer charge for that
n l.
the sewer rate, so determined may. at
his own cost, install a meter or meters
as provided by Section SC.
@. Council shall he responsible for
the collection and analysis of samples
of industrial wastes used as a basis
for determining additional charges due
to excessive concentration of BOD,
suspended solids and chlorine demand.
Representative samples for full
working day shall be obtained by TAX
ing hourly samples and compositing
them in accordance with the flow at
the time of sampling. Samples shall
be obtained during the last thirty
600 days of each quarter, the actual
date of sampling to be at the con-
venience of Council; and the analysis
of the samples so obtained shall he
the basis for computing additional
charges in accordance with Section
Alb.
f. The analysis of samples obtain
ed shall be made in accordance with
the Ninth Edition 1886 of the Stand
ard Methods for the Examination of
Water and Sewage as published by
the American Public Health Associ-
alton.
g. When required by Council, the
Owner of any property discharging in
dustrial waste to the City Sewer
System shall install a suitable con-
troll manhOle in the building sewer to
facilitate observation, sampling and
measurement of the waste Such
manhole. when required, shall be ac-
cessible and safely located and shall
be constructed in accordance with
plans approved by Council The man
hole shall be installed by the Owner,
at his expense, and shall be main
tanned by him so as to be safe and
accessible at all times.
h. Council and Ior its duly author
ized representative shall at all reas-
Onah1a times ba pprtr1iffa6 IN aOfar