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<br /> sewage disposal system." row'Tfie buried or concealed por-
<br /> Subd.D.Inspector.The City Plumb- tions of any building sewer,
<br /> ing Inspector. building drain or branches
<br /> Subd.E.Sewage.Any water-carried thereof located less than fifty
<br /> domestic waste,exclusive of footing (50)feet from any well shall be
<br /> and roof drainage,of any residence, constructed as extra-heavy
<br /> industry or commercial establish- castiron soil pipe with lead-
<br /> ment,whether treated or untreated, caulked, air-tested joints. The
<br /> and includes the liquid wastes pro- joints of any sewer, drain or
<br /> duced by bathing,laundry and culin- branch located less than forty
<br /> ary operations,and from toilets and (40) feet from a well shall be
<br /> floor drains; and Raw sewage is further protected against
<br /> sewage which has not been sub- leakage by means of bell-joint
<br /> jected to any treatment process. clamps or six(6)inch concrete
<br /> 262-29. GENERAL PROVISIONS. All encasement or by other equally
<br /> Individual Sewage Disposal Systems in- effective means. The air test
<br /> stalled subsequent to the adoption of this shall be made by attaching an
<br /> Ordinance and all alternations, exten- air compressor or test ap-
<br /> sions and repairs to Individual Sewage paratus to a suitable opening
<br /> Disposal Systems irrespective of the and closing all other inlets and
<br /> date of original installation shall be outlets to tie sewer and/or drain
<br /> regulated in accordance with all of the under test by means of proper
<br /> requirements of this Ordinance.Any In- testing plugs.Air shall be forced
<br /> dividual Sewage Disposal System or per- into the system until there is a
<br /> tinent part thereof, irrespective of the uniform pressure of five (5)
<br /> date of original installation,which is not pounds per square inch in the
<br /> located, constructed or installed in ac- section being tested.The system
<br /> cordance with provisions of this Ordi- shall be considered satisfac-
<br /> nance shall be so relocated, torily air tested if the pressure
<br /> reconstructed or re-installed as to com- therein remains constant for fif-
<br /> ply with these requirements within three teen (15) minutes without the
<br /> (3)years of the date of the adoption of addition of air.
<br /> this Ordinance.Where there is evidence (2) The portions of•any buried
<br /> septic tank effluent percolating from sewer more than fifty(50)feet
<br /> ground, the system must be cor- from a well or buried suction
<br /> ted and conform to these standards line shall be of adequate size and
<br /> hin ninety (90) days after written constructed of cast-iron,
<br /> ification. vitrified-clay, cement-asbestos,
<br /> Subd. A. General Requirements. concrete or other pipe material
<br /> The following requirements must be acceptable in the State Building
<br /> satisfied: Code.Clay pipe and clay pipe fit-
<br /> (1)Location and installation of tings shall conform to A.S.T.M.
<br /> the indivudal sewage disposal specifications for standard
<br /> system and each part thereof strength or extra strength clay
<br /> shall be such that,with reasona- pipe and clay pipe fittings. No
<br /> ble maintenance,it will function building drain or building sewer
<br /> in a sanitary manner and will shall be less than four(4)inches
<br /> not create a nuisance nor en- in diameter.
<br /> danger the safety of any (3)The space between the bell
<br /> domestic water supply.In deter- and spigot of vitrified-clay pipe
<br /> mining a suitable location for shall be packed with oakum,
<br /> the system,consideration shall hemp or jute or otherwise pre-
<br /> be given to the size and shape of pared so as to form a concentric
<br /> the lot, slope of natural and opening uniform in width around
<br /> finished grade, soil per- the pipe,which opening shall be
<br /> meability, depth of ground filled with Portland cement
<br /> water,geology,proximity to ex- mortar or other acceptable
<br /> fisting or future water supplies, sewer-joint compound. Pour
<br /> accessibility for maintenance, joints are recommended.Where
<br /> and possible expansion of the cement joints are used they
<br /> system. shall be carefully pointed on the
<br /> (2)No part of the system shall outside and left smooth on the in-
<br /> be located so that it is nearer to side by drawing through them a
<br /> any water supply than outlined swab or scraper.Construction of
<br /> hereinafter, or so that surface the line shall be such as to
<br /> drainage from its location may secure water-tight and root-tight
<br /> reach any domestic water sup- joints,free of obstructions,and
<br /> Ply. shall provide a grade of not less
<br /> (3) Raw sewage, septic tank than 1/8 inch per foot. The ten
<br /> effluent,or seepage from a soil (10) feet of sewer immediately
<br /> absorption system shall not be preceding the septic tank shall
<br /> _discharged to the ground sur- not slope more than 1/4 inch per
<br /> face,abandoned wells,or bodies foot.No 90 degree ells shall be
<br /> of surface water, or into any permitted,and where the direc-
<br /> rock formation the structure of lion of the sewer is changed in
<br /> which is not conducive to pur- escess of 221!2 degrees,accessi-
<br /> ficat ion of water by filtration,or ble cleanouts shall be provided.
<br /> into any well or other excavation Subd. C. Septic Tank. The septic
<br /> in the ground which does not tank shall meet the following re-
<br /> comply with the requirements of quirements both as to construction
<br /> this Ordinance. This require- and placement:
<br /> ment shall not apply to the dis- (1) The location of the septic
<br /> posal of sewage in accordance tank shall be such as to provide
<br /> with a process approved by the the stated distances from the
<br /> State Board of Health or the following:
<br /> Water Pollution Control Com- (a) Property lines, buried
<br /> mission. pipe distributing water
<br /> (4) The lotrsize shall be suffi- under pressure and oc-
<br /> dent to permit installation of the cupied buildings - not less
<br /> individual sewage disposal than 10 feet.
<br /> system in accordance with all rb)Any source of domestic
<br /> the requirements pertaining water supply or buried
<br /> thereto. water suction line not less
<br /> (5) Installations of individual than 50 feet.
<br /> sewage disposal systems shall (2)The liquid capacity of a sep-
<br /> not be made in low swampy tic tank serving a dwelling shall
<br /> areas or areas which may be be based on the number of
<br /> subject to flooding. bedrooms contemplated in the
<br /> (6)In areas with a high ground- dwelling served and shall con-
<br /> water table or where limestone form to capacities given in Ta-
<br /> or any geological formation ble 1 which follows. The liquid
<br /> similarly faulty is covered by capacity of a septic tank serving
<br /> less than fifty(50)feet of earth, an establishment other than a
<br /> the final disposal unit shall be a dwelling shall be sufficient to
<br /> Itile
<br /> field. The bottom of the provide a sewage detention
<br /> trenches shall be not less than period of not less than 24 hours
<br /> four (4) feet above the highest in the tank but in no instance
<br /> known or calculated water table shall it be less than 1000 gallons.
<br /> or the surface of the faulty rock TABLE 1
<br /> formation.
<br /> (7) Bulldozers, trucks or other Minimum Capacities for Septic Tanks
<br /> heavy machinery shall not be (Provides for Use of Garbage-Grinders,
<br /> driven over the system after in- Automatic Washers and Other House-
<br /> drivetion. hold Appliances)
<br /> (8)The system or systems shall Equivalent
<br /> be designed to receive all Minimum Tank Capacity
<br /> sewage from the dwelling,build- Capacity per Bedroom
<br /> ing or other establishment 2 or less 1000 500
<br /> served,including laundry waste I. 1,200 400 and basement floor drainage. 4' 1.200 350
<br /> Footing or roof drainage shall *For each additional bedroom over four,
<br /> not directly enter any part of-the add 300 gallons of additional Capacity. •
<br /> - system.Where the construction (3)The liquid depth of any sep-
<br /> of additional bedrooms, the in- tic tank or compartment thereof
<br /> stallation of mechancial equip- shall be not less thad thirty(30)
<br /> ment,or other factors likely to inches. A liquid depth greater
<br /> affect the operation of the than six and one half(6 1/2)feet
<br /> system can be reasonably anti- 'shall not be considered in deter-
<br /> cipated, the installation of a mining tank capacity.
<br /> system adequate for such antici- (4) No tank or compartment
<br /> paled need shall be required. thereof shall have an inside
<br /> (9)The system shall consist of a horizontal dimension less than
<br /> building sewer, a septic tank, twenty four(24)inches.
<br /> and a soil absorption unit.The (5)Inlet and outlet connections
<br /> soil absorption unit shall consist of the tank and of each compart-
<br /> of a sub-surface disposal field. ment thereof shall be sub- ,
<br /> All sewage shall be treated in merged by means of vented tees
<br /> the septic tank and the septic or baffles so as to obtain effec-
<br /> tank effluent shall be discharged live retention of scum and
<br /> to the disposal field.The septic sludge.
<br /> tank drain field system shall be (6) The space in the tank bet-
<br /> considered the only acceptable ween the liquid surface and the
<br /> system for installation unless it top of the inlet and outlet baffles
<br /> ' can be demonstrated that this or submerged pipes shall be not
<br /> system is not feasible on the par- less than twenty(20)percent of
<br /> ticular lot in question and if it the total required liquid
<br /> can be demonstrated that this capacity,except that in horizon-
<br /> system is not feasible on the par- tal cylindrical tanks this space
<br /> ticular lot in question and if it shall be not less than fifteen(15)
<br /> can be demonstrated that the percent of the total required li-
<br /> system being proposed as an quid capacity.
<br /> alternate will not create a pollu- (7) The inlet baffle or sub-
<br /> tion problem. . merged pipe shall extend at
<br /> (10)Soil absorption systems for least six(6)inches but not more
<br /> the disposal of sewage waste than twenty(20)percent of the
<br /> shall not be installed on land total liquid depth,to the nearest
<br /> where the slope exceeds thirteen inch, below the liquid surface
<br /> percent(13'%). and at least one inch above the
<br /> Subd. B. Sewer Construction. The crown of the inlet sewer.
<br /> following construction requirements (8) The outlet baffle or sub-
<br /> must be satisfied: merged pipe and the baffles or
<br /> (1)No buried or concealed pur- submerged pipes between corn-
<br /> ti n of the building sewer, or partments shall extend below
<br /> (ding drain or branch thereof
<br /> • vmg any establishment shall (Continued on Page 18)
<br /> ocated less than thirty (30)
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