HomeMy WebLinkAbout1983-04-12 Septic System Reportti
4. D4ain6ictd - you4 d4ain6ie. lie component 06 yota .septic system .the contAacto-t
has Ceas.t conthol oven. No mauet how teell constLucted a dna.6n6ield i.5, .it i,6
no beaten. than ,the aoit it .is placed .in. Fo4 example, a 1500 ,square 600.t d4a,in-
6.ietd .in heavy clay with high wa.te4 tabf-e se,'Lv.ing one 4es.idenee may not wo41z a3
well as a 400 6quaAe boot dtai.nSieed .in Bandy to 'm with no wa,teA .table p4oblem.
The soil i,6 va4,iabte (-thanhz .to ,the glaei.eu) and may be eomptetety cU66erent
.in .locations tus than 100 beet apaAt.
The .type o6 4epauts on 4eplacemen,t 06 your dra.i.n6.ield logically should be based
on the capability o6 your pcuticuta4 soil .type. To do .thin, it is p4udent .to
have pe4cotation teats and soil bo4,ings .taken. The "pent" .test is a measure
o6 how but wateA tout move -through .the soil. Bon,ings will indicate .the depth
.to wateA -table o4 seasonally saturated conditions (.indicated by mottled 4ed and
g4ay colons .in .the aoil.) and should dL6cove4 any ha7dpan o4 clay layers which
wi ll .impede wat,,A movement.
XSoil borings/pert tests are required.
❑ Soil borings/pert tests are recommended.
❑ Soils borings/pert tests have been done previously or are not needed.
Based on .the 6.cndcnge, .the peuon doing your -tuting should design a system 6o4
your paraieulan wateA useage (bated nonmatty on 150 gallows pe,% bea4com pen day)
and 6o4 you4 par.Uieular site. It iz not unusual .to 6.ind .that you may need a
mound -.type system, since .the majoAity o6 04ono's sous are clayey and have
perched satu4ated zones within a hew beet o6 .the sur6aee dwti.ng pant o6 .the yeat.
Trench systems .in,e.ta ted in .these soils in .the put o6.ten expe4.ienced seasonal
6ailu4e. HoweveA, .in many places -tAenehes still can be used where conditions
are suitabte.
No4ma ty, .the City Inzpeeto4 will 4eeommend what he 6eet.6 are the minimum
acceptable 4epavus based on his knowledge o6 .the site and situation. NoweveA,
.the4e .cs no yua4antee .that the 4eeommended %epair✓z will be adequate. Fo4
.this %eazon, a dc6ign based on 6oi P- .testing and your particular site and
wateA usage .i.s atmo.6t atwayz 4eeommended.
Number of Bedrooms in Home 1 2 3 4 5 6 7 8 (circle)
❑ Recommended type of drainfield
❑ Standard Trench; _ square feet minimum
❑ Shallow Trench; square feet minimum
Mound Dime+ s4o �iL 17aniJ
❑ Other
No Recommendation on system type; you should have soil testing done and have
a system designed by a site evaluator, site conditions are too marginal or
unknown to make a reasonable recommendation without testing.
5. 16 .the 'ailure 06 your system i,6 causing a-~uA6ace discharge .that -ins a potential
nuisance .to youh ne.ighbou, you will no4matty be 4equuted .to have your .tanks
pumped a-, 06.ten as necessary .to eliminate .this dizchange, until your system is
4epai)ced.
Page 2o63
6. WHAT WILL REPAIRS COST?
Thus Wtti.ng is given onty as a nebenence. Condi.ti.ons vary bot eacl, site.
The ranges given ate bon a -typicat nepaih, and yours pa7,ticu.tat design may
cost mote on tens .than shown. Res.totati.on ob ,sod and bushes .es notmaPty
not inetuded .in .the ptice.
Typ-i.c.at Repaih InztaP,ted Ptice Range
600 square beet ob dnai.n6ietd .in trenches $1500-2000
1000 square beet ob dnainb.ietd in .thenehes $2000-3000
1-1000 gatton ptecas.t ca.Lchcte .ta;; $ 500-1000
Pump, atatm and 500 gatton pump .tank $ 600-1200
Mound drainb-ietd -inctuding pump/pump .tank/a.tatm $3000-5000
To -tat System. Reptacement
Standard Tnencl. - 2-1000 gatt.on .tanks, 1000 sb ob dtainb.ict< 2500-4000��
Mound System - 2-1000 gatton .tanks, 500 gatton pump .tank/pump/atatm,
(3 bedroom home) Mound System 5000-8000 '
7. WHAT IF I FIX My SYSTEM AND NEXT YEAR THE CITY PUTS IN SEWER?
Onty a bew .6peci 61c areas ate .targeted bon poss.ibte butute sewc&6 .in .the tutat
-,a, is ob Orono. These areas w.itt ptobabty not be served unti,t/untess ulidesptead
system baitutu oceut. The City has appti.ed bon Fedetat Gtant Monies .to .ins.tatt
sewer bon 6peci6ic areas, .i.nctudi.ng Cnys.ta.t Bay, Stubbs Bay/Westtake- Sthee.t, and
Stubbs Bay NE. These ate lus-totieatty devetoped areas with subs.tantia.tty .tens
.than ,the minimum 2-ache tot size and have a po.tentia.t bon septic system bai.tutes
which cou,tdn'-t be nepaited adequate.ty or -site. Howevet it may be yeats bebote
seivehs actua.tty go .in. The temain.ing pa:tts ob nutat Otono, .in .the 2-ache and
5-ache zoninc aist ict,,, arse speci 6icaEty exe.tuded btom being severed in .the
boteseeab.te Suture.
I am located in an area that may be sewered if problems worsen or
federal grant money becomes available.
I am located in an area specifically geared towards permanent usage
cf septic systems.
11 Other
8. (WHAT STEPS SHOULD I FOLLO(U?
1. Hite a soitis.itc evatua.ten .to do .the neCessaty .testing and design a system
bot your needs. Ib -tcJs,ting is not tcquited, Nou may skip .this step.
2. Submit the design bot appnovat by .the City.
3. Once design is approved, have one of mote ticenscd conttactots bid on
,the approved design.
4.
ANY
The con.t.aaetot you choose shou.td obtain a permit b ,om .the City beSo-ae
s.tovLting werk, and he wi.tt catt Got Inspections as necessary.
QUESTIONS? CALL THE SEPTIC SYSTEM INSPECTOR AT 473--7357,
Pacie 3 c; 3
/3o C;G/L;e-� - 6-N1
CITY OF ORONO
ON -SITE SEWAGE TREATMENT - REPAIRS OR ADDITIONS TO EXISTING SYSTEMS
THE FOLLOWING GUIDELINES SHOULD HELP YOU IN REPAIRING YOURFAILING SEPTIC
SYSTEM:
1. System is baiting because:
Poor soil conditions
Too much water use for size of system
High Water table.
Sludge getting into grainfield - tanks need repair/replacement ?
Other LDC4-770AJ
Unknown; or a combination of the above factors. It is not always possible
to determine the exact cause of system failure, but those listed are
common factors.
2. Tanks - City Code tequiAes 2 .tanks in a noltma.e residenti.at g4ay.cty-6eow system:
1-1000 ga ton, 1-750 ga ton pteea,6t eoncAete .tanks in series. These ate minimum
sized - you may wish .to instate .eanget .tanks. 16 you have onty 1 .tank, it u
noAmaet.y tequiAed .to add a second when %epa.iti.ng a 6a.it ing system. 16 you have
2 .tanks but they ate subs.ta ti.a ty undeui.zed (500-600 gattons, dot instance) ,
it is recommended that .they be tepta.ced. 16 your tep" wit %equiiLe a pump,
it shoutd be placed in a .thiAd .tank (500-1000 gatton recommended).
System will likely require replacement/addition of 1 or more
tanks:
EWS i //UG 7", a1y /✓O&-J AJ
3. A note about pumps: Pumps and pump eontAotz have out o6 necessity become better
designed and mote dutabee in .the tas-t hew yeau. NeaAty one septic system in
6ouA i.ns.tatted in Otono make6 use o6 a pump, due .to site conditions. A pump may
be needed: - when basement 6foot dna&ts of towes.t seweA tine cue be.eow the at.ea
.to be used as dtain6i.etd. - in aft mound systems, which ate used where high water
.table of seowey pe.neofating soils ate 6ocnd.
There are essentiae.ey two .types o6 pwnps used in septic systems apptications:
1. E66tuent pumps - pump only P.iqu.ids, notmatty used a6.teA the second septic
.tank, of Got faundny .i.n .the basement; and
2. Gti.ndet of solids -handling pumps, used 6or basement -toilets and sometimes
.in,sta ted in an outsie sump, which pump sewage up .to septic .tanks on
high ground.
Pump 6ai uAes in the past have been due mos.tey .to switch 6aitunes (coAAosi.on
of weati.ng out) and etecthie connection co4Aos.ion. Both 06 -these ptobtems
have been reduced by use o6 co"osivn-tesis.ten.t 6eoa.t switches and :onnection
boxes. White pump 6adALAes ate Bess common .than in the past, a high water
aeaAm costing apptox,imatety $75-$100 is ,tonmatty tequ Aed whehe a pump is used.
I.t's wete won.th .the pAi.ce i.6 it eaves you a costti( basement ceeanup.
Repairs to system will likely require a pump, including a pump tank
and alarm system.
Page 1 o6 3
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