HomeMy WebLinkAbout2570 - Site Assessment ReportFOR
JOHN LYNSKY,
ACRES,
KNOCKATALLON,
CO.MONAGHAN.
4�-
Pt,4/V,V 10k- co
sil. co-�-
ING �c i;
03 Sep 2025 0N
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I
Il(W i,ril'._.�
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I(�il 1 ����iil I 1 � I- tee r Io�;l.;i nH.l lts �(nt
"Idjl 1t,ed ly, -nI;ill.
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_ LAN,V11V(,, p
'0 - Co. Co. RED jVC NT
1[PUNNING SECTION 2517
0 3 SEP 2025 �oNA��A
N cC �®U�CIL �
(-',II
-',r i i C I:- i 11 .J, Ili' _) d `d � !._ , 1VI
i, i i :f(:n(•1Ic, John Lynsky, Acres, Knockatallon, Co Monaghan.
r. Mr 0 nl; „ John E;r.0 nr�rnc:•: Lynsky
site Location and Io�wnlal;d:
Acres, Knockatallon, Co Monaghan. Acres, Knockatallon, Co Monaghan.
10877719703
P,lumher of Bedroom;: 14 0 [6 __
Cam lncnt� on populaii-m equlvaleni.
-here are 4 double bedrooms which will equate to six adults.
Ftl s.1.e �w ill/Bc�ir�!)r�i� a.lp uVeIliBorelnolt:
Cut. Soil basin Peat. Blanket peat.
Cut over raised peat.
I T,,
! edrock lypf DSL
Regionally Ilnpot%ant Locally irnpori,ll ' LI Poor — 0
Vulnerability: Extreme Hi( 11 Moderate Low17/1
f lom-ldvwat; r Body: Tydavnet Good
i�1211pie of P! il:)lic/Croup SciIer;-le Wales Supl.11�I Witllin Aughnashaivey GWS
`>nuif �:. F)rollo(:;ilon Aiea. LO(� Cler Prot Uti��n i ieStJOnSt;: R1 ❑�
Presence of �- LI
iArr.i,aeologic;al. NEJiural & I iisioric ;i; None
Pli,, t ��x1)erl8nce in the area:
did test holes for the house next door a number of years ago and recommended a raised
nound percolation area.
Con I] lents'
Lcn tl - i., r,i,I- t- _. "): ll,:.
The site is potentially suitable as there appears to be no restrictions to the on -site treatment of domestic effluent. Surface
water and ground water could be targets at risk.
l!oln: ()Ilk: 'immallon "'?ad arl.. it .I-.e d sl. ;;ludp :acme be i , lw-
3.1 Visual Assessment
Pr)<, It io n : FLOW -lying on a generally flat plane.
I ❑'U Iallo\v (1:5-- Ll
Steel.) (>-1:! El R]
loilt
About 1:25. Quite flat
I I
C;m lace Features vvithill 2 i-IIJI-JITI-1111 of 250ni (Dis.tdnce To Features S1 iould Be Not.jd h
H (-) I- I! -I e"�:
Existing Land Use.
Not currently being used.
V,:qet,Oon Indicator,
Grass and some rushes.
Flo"I't Direction: Expected North-East
Firm during a spell of wet weather.
Mature hedges, recently planted hedges and fencing.
3.1 Visual Assessment (contd.)
Local road along the South-West boundary of the site.
None
vv"OU-i pcmdin,
None
Kilmore lake 1.2km South-west.
None
None
None
�ivl, I our_,_.:_,
Stream 200m South.
3.1 Visual Assessment (contd.)
None within 50m
FN-onewithin 100m
\Ak, I I s 1
within 100m
,.; i.) I'l I 111 e I I t ":,:
"r '0 ov" Iofd,-: to "on-1, tienl,l 1 1110 J."'!( ti. 11 "m ";n! tl tputc, ItIal R3ror tit tt S1 iT ai 1111v w it ;it to 1; rai I I,, v:1,
site was in firm condition underfoot with the assessment being carried out during wet weather.
! ;nI"! I eco I d I :i I r ,
3.2 Trial Hole (should be a minimum of 2.1m deep (3m for regionally important aquifers))
ii'l�/ ;.i`aJt�r,ll}%?I (i .nl-flat', (i ll'I=11 hol[,-i.�S(-'S�III('IIt I)I (�+:rCC)IFt[I(ill IF':'•i:i :SiIC)UI�-i l�f)t. ij;_ CIII(1� I l_litcal
ar(,�IS +)�ihic h ,tie .11 nr adiacent to..i!:inilicant sites (e.u,. NHAs. SACS, SPAS, and/or Ari;haeological
+c.), k/iihout ijrior advice fiord NiLt i(_lna.l Parks and Wildlife Service oi- ti l ,, l lr-;ri <tdc, `k:rvic;e.
D(�pi1-1 oI t I i 11 hale (In'): 2.1
t, :ptti from grollnit suliac Depth fioni giotlntl l.nlace
to becl oOj init ;,;, � to water table (m) ul
Ctr t,tl; ;lt `✓;'£tt(�r in�ir'.,_ 0.4 ROCK type nil; _lNone
"Ind tillIP of c::;ct;stion: 02-Sep-2023 11:00 Date ancl time, of examination: 04-Sep-2023 F 10:00
1 rji
;Ufi a.GJ C,nd
P(=rc:ol.ation
1pctq
l_IIe Plastioiiy arld Soil
C.Iii;SlilCcitltjil CIIIPtc'In(:�/ �trLlCillrr
SILT / CLAY 4 threads - 90mm
TOP SOIL ribbons - dilatant
SILT / CLAY subsoil 5 threads - 110mm
ribbons - dilatant
----------------- ---------------
Water table 1.7m
Base of trial hole 2.1 In
0
CRUMB
BLOCKY
Density/
COI n}jaCille�',:,
t-;olol-n'".. F're�ierentiai
flov;+t?ah s
UNCOMPACT BROWN
UNCOMPACT BROWN
Lil<;ely Sui_)s(.Irf��ce Peicol,-Itioil Value: 50
-;Eery curt�ce Pt�re.ol�llion V.illle. 30
Hole: n, c..--_ 1Fnt�l ur:, n(;Irr i _ .a ,i>nrnp�i_JeL
,.
! he cnbar,t:d 0,. ,r=.acli II,.rPcon.
GRASS ROOTS
NONE
3.2 Trial Hole (contd.) J
IThe trial hole was 2.1 m deep with two distinct layers. Top -soil and below that sub -soil that was blocky in nature and quite easy
to dig.
3.3(a) Subsurface Percolation Test for Subsoil
Step 1: ' ! Ink- PI enar:1,00n
t"e'rc:.,l:, iOri (C :1. 1'1oI
:.,fj i i .)i n grouI Icl surface
400
400
400
io top of hole (nm-i) (A)
;rapth from ground surface
800
800
800
io base of hole (mrn) (G)
Depth of hole (mm) [b - Al
400
400
400
Dimensions of hole
300 ;; 300
300 ;; 300
300 x 280
[length >: breadth (i��rltil
Step 2: Soaking Test Holes
ci a .:Iuaf: start 1)ae.
02-Sep-2023
02-Sep-2023
02-Sep-2023
I I m e
14:30
14.30
14:30
2nd pre-soak Date
03-Sep-2023
03-Sep-2023
03-Sep-2023
start I ime
13:00
13:00
13:00
Lach hole should be pre-soaked tvvioe before the test is
carried out.
Step 3: Measuring T,,,
P6,r,,oir-ition Test Hole: No.
1
`?
E
D,}te of tr-� at 04-09-2023 0409-2023 04-09-2023
Ti;jjr-� filled io 400 111111
10:00 10:0011 10:00
Tirne vl ater level at 300 mrn 12:40 12:30 12:40
I H IP. to drop 100 nln (T,,,) 160.00 160.00 160.00
;",vet age T 166.67
-180 rnimitc?s then Sr.ib.,U face Percalatiorl value >120 --site unsr itable for discharges to grourlcf
l T ., __ '10 minutes Cheri go to Step 4;
If T 210 minutes then go to Step
Step 4: '_ ':mdar(I h/letiuu! 1, i:i ;Iiilll_i1(.:,)
A, cl'.()I,`3iioII
=iii Flo.
art Finish \i (1-11ir1)
1-irne T irne
:it. 300 let 200
t iilil) ilil"i I)
31art. Fini�.;i_I At (tliin)
Tine Tina-,
(:;l s00 :100
!ll it l) ,,,'.I)
Stol-i Ai (mill)
Tin Icy Tin-ie
iit 300 (at 200
alit lj Il!I-i I)
00 0.00
0.00
0.00
0.00
\/all.l
Em0
A\rf:faC)e .\l/4 =
(Hole No.ij 0.00 (t )
Average -MIA
LHole rI(-r.2] 0.0 (1: )
e
(Hole hlo.31
R= ,sI-Ilt of T eS t PH (0111tion Value = 1 0.00 (mill/25 mm)
lith the subsurface test being quite slow I proceeded to use step 5.
Step 5:I 0 Muir Iii , ;1
Pe. olI
Tryst
----IF
- --F
Fall of vntel
'I ncla Iflll Ill I'll
1-1
11 ; F
- 7
coo 25U .{.I 1040 1230 110.00 0.07 60.43
250 - 200 sl,; 12:30 14:30 120.00 0.08 55.05
2rt0.150 11.g 1430 FV:00 150.00 0.08 56.09
;;>t.!- 9UU t_t.t 1T.00 19:55 175.00 0.08 55.23
\,/erlrae T- Value T- Value HOW i - (F.) 56.70
F�+r::oliticn i
ill hula: (Iilrlll f-:.u:ivi Tune
-T
300 .>5o r.1 10:40 F12:00 80 OO]F 0.10 43.95
_,50 _ 9010 9.7 12:00 13:35 95.00 0.10 43.58
200 150 11.9 13:35 15 551[140.00F 0.09 52.35
1,10 F-i 1555 F1915 200.00 0.07 63.12
T- Value T- Value Hole 3 = (T) 50.75
p@CGolatlor I
IF,I HnlefJo. 2
Fall of V/aic T wI _: T -
Ill hiilE (I iltl l) Pdcirn' iiu: i -n :
- T Wh:r,,,, hrcmo,
300 - 250 s. i 1040 1246 120.00 0.07 65.93
250 - 200 =12:40 14:50 130.00 0.07 59.64
50 =F14:50 1720 150.00 0.08 56.09
15n - ioo 1T.1 17:20 20:15 175.00 0.08 55.23
Average T- Valur T- Value Hole 2 - (T) 59.22
Resuli of Test::_,ukisuriace Percolation Value =
55.56 (ruin/25 mm)
coo 11111e)itS:
3.:3(!�) •`._,uriac:c ('ercc)i�iiii)s) Te.;i for <,r)ii
Step 1: Test Hole Pic)immlion
=`)>Icc)katio11 Te::t Hole
th irr)n-I Ui�.;IJii�-1 '•�.II"iLICE
IL I
to tot_) of note. (n-11 n)
i h orn groin Id zam t ;r e
39
)z ) 400 400 0
Of I?olr. (it�in
D::I)lh of ilolk, friml) 400 400 390
t)"it nen"ions of hole
hle;:td1h 290 290L —I F
290 x 280 280 ! 280
Step 2:'=tE-'-t",00kiny Te�,>t Hol. _�:
':ate
1 i.i1e.
2nd I,r,: ,;o,)k: Cate
start Tillie
02-Sep-2023
14:35
03-Sep-2023
13:05
02-Sep-2023
14:35
03-Sep-2023
13:05
i-r-ch holy,-Lhoiild he pre-soaked bmic-e uefore the test is carried out.
Step 3: fvlieasiiiir19 T«�
02-Sep-2023
14:35
03-Sep-2023
13:05
Parcolation Test {--sole No.
Date of
04-Sep-20 04-Sep-20 04-Sep-2023
test
t'in le fiUec; In 100
10:05 10:05 1 10:05
f ime v✓atei level at 300 inn i 11:30 11:25 11:25
177,162.00 177,157.0011 177,157.00
Tune to sirup 100 rru i i (T1
Average T„ . 177,158,67
;f t 4s(-) minutes then SUI fdCH Petcol,-ltiorl value >90 — site iin suitable for discharge t(-) ground
It T,; 910 minutes iheii go to Step 4!
If T..,, -, 210 rninuW,, then go to Ste) a;
Step4: Siallda.rd IvIelhod (vdht�,-w 1-1, NO
1;-, o 11
lk no.
-11ill)
Tin -le
-,T)
stal 1. Fi nisd i VI (will)`_Marl:
Twite Tin -le,
Fit -:;It it (tilin)
Tilde 1-inle
tt Zoo
1 370, 12:5�.
11.2
�
F 105-0
F 12.50]F 14-.451F `IV5�,00
14:55] 120.00
F--1 5-5.070
F---14:415F-1-7-30F 165.00
F 14--55F 17`40] 165.00
Avei2iqn 1T
115.00
121.E
125.00
,4wevioe -M4 =
HOIC2 No.tj 28-75 ](T,)
Average � i74
[Hole No.21 30.4 (T-j
/,"vel"Ige AI/4
(Hole Nlo.3]
`--i(>stilt of Jest: ""Lidace Percolation Value - 1 30.141 011in/2-`, 1111-11)
'he topsoil at this site is of good quality and may be used to form a raised mound soil percolation area to polish treated effluent from an
dvanced treatment system.
Steps: [\,,Iodi fied Miefl iod J,
f: � c C) I a t i 0 11 Pe, i c t a i i o i i
Test IdOe No. I I Tesl A 1 2
�Ii of water
i Lore (rn ri i
t We
Fall of water
hole iIIIIII,
I
Factor
sto, t
hl".
F,, 1,
2.' A
om
-,00 no
---A==F uol
0 0
===F-0--001
I �:() 200
9� 0.00
50
==F— FOOOI==
GO 00
===F-0-0-01==
1.50 lot j
T V,l I t i, � H t ) I �, I - t. I0.00
Average
1 value T- Value Hale 2 - (T.l mol
F
R(auli. of
Test: SUrf2.CP. Percolation Vale ie
0.001 (111il-1/25 11-1111)
Col I11 I let lis:
ilul, it T I
0.00 00
50 - 200 F 71==F 0.00 ==
"00 -6-0-0 150 F 11.9 ]==F I==
100 ===F0.00 ==
/veiaqe T- V,11LIP T - V611-le I-110le 3 -- (T ) F mool
3.4The following associated Maps, Drawings and Photographs should be appended to this site
characterisation form.
i Uwcovury8o/ioyi�,O.O0Uknup
indicaiinOoverall dnyina0e`
Uroondwate/Uow dironUonond
houningdenadyinthe aoao-
2SuppodinQmapofo/vohnon8bi|ity,
aquifer doauifiuu1)on`soil, sobsoi
hod/nck,
3Norih pmn\ shou|d a|vvayn be inc|uded.
4. (V Suo|edokeichofsite showing
nneuou/amen1sto7iia| Holt-,, hua|ion
al Id
(b) Percolation -'rest Hole locations.
(C) weUuend
(d) directiuno|g/oondvstierUp*
(i[hnnvn),
�e,) proposed house(ind.distances horn
bouoda/ieIS)
(f) adacenihounas.
(g) vvaha|nouruoa.
U� oigniUrantoiteo
(i) and other relevant haakoes.
5' Site upecifiocross o*o|ionn|drawing
o[the site and the proposed layout'
Should besubmiited.
6Photographs, of the trial ho|o, test holes
g |dako (date and sile inc|udinao
tio-terafe,onced).
7 Pumpaddesign rnuSthedaniynedbya
.`.^u.wwr"wu,Tw,,I^w"f) I I,:.,I( I I l I tmnn°u~^mu~*y^^n".".,m^w.m"=to'*,w,m,xp,..ou.(-) I*".`°na`mvooil e
S •I�,(it'FJtF', iht'. itif( in -III- oti flow 11te (le.;k `;tijdV/ )1id (in Il cU.> ,-.-:;111Pn1 (i.e. `rl;llal Iri;d hole,;111(1
t.'t_lIt1UuII d)(A,k' an(1 cot icItioe ifl� tyl)e of :.V i(7I11(:;) 111,st Is (tre) ]l?i,IoprLale. MIS It! lOrrll:itinII I.� "dI ) tl
( ilt1O 11}E': (jotimilill final (;I' tlrls;?,1 roWe Uf i_113 'f.
i III"IltI;-:', t!1 / I-e-t111-!'11P -lr;=';=I:
Alu Al minimum 2 (.jl'. I�Jii(.irl dlL;t%?IlC(':; IiU',
I C,I 4111: I=1iIII".11.C'ri (.II [:Ilwi t i ',,Ill. ()II ltw - .1 C)-�l':%i't
jrIn 11.11u11tr ill tI1C of (1111, dr;rl I �'A
,�rct.11;tIiorl i��::;i. r(-;:,Illi: 3urfac-:: 30.14
,t!FPti.iIy a I I suL taI:)1 e. 0p'L10VIs
i. sepi.ic lank systern (septic tank and
l_eicoiation areaj (Chapter l)
No
%. uecorldai y l reatrrient Systern
Glta Aers 8 and (l and soil polishing tiller Yes
('5ection I0.1)
3. li riiary Tre .trnent systern ancf hlfilir;;iic,;, ❑
Yes
treatment area (Section 10.2)
1:25
0.90
Sub-st.l face:F 55.56
` Ili't_ ale for Development
f ropo!z re to it lsi:lli Secondary Treatment System and soil polishing filter
and discs atge to Groundwater 0
Invi-I I level of the tielICl/bed Tavel 01 drip tt bina (I -I]) 0.60
` ite Specific Conditions (e.c. si-)e6a1 vdoik . site irnpi-nvement works iesting etc.
Mechanical aeration system and a raised mound soil polishing filter measuring 1.2m in height to be installed and constructed
to EPA 2021 specifications. The raised mound shall be made up of the insitu topsoil and is required as the subsurface test
was quite slow and a small amount of water remained the the test holes from the pre-soak. I recommend 60m of percolation
trench in the soil polishing filter consisting of 6 lengths of trench each measuring 10m. The invert of the percolation trenches
should be at 0.6m with 0.9m pervious unsaturated soil below to ensure proper polishing of the final effluent. The raised
percolation area shall measure 13m x 15m. Ensure that the final effluent from the mechanical aeration system is distributed
evenly to each of the six percolation trenches. It is important to ensure that the percolation trenches and related pipe work are
put in at the correct slope. A surface water drain measuring 1 m deep shall be employed (min 2m away) all around the raised
mound soil polishing filter to divert surface water away from the percolation area and to prevent the water table rising in wet
weather.
NOTE: It is very important to ensure that the aeration pump remains on at all times on the mechanical aeration system or
otherwise the system will revert to septic conditions causing odors and poorer quality effluent which may lead to clogging of
the percolation trenches.
cdl l U :, J 74t' '1 itUri 1C ;II i,' Kd er it 11 t ton' c.I 1, , 'l, y' or jI IIVeI'. St F.I IIill, ,. 'II :I. n.,rrVO I :1 C1,11 '' [ , , ,It,, -, oili_e .r U:' ur
J ... :,t�ell-i-rtwin,rtl ,I 11h,''11l 1111-ph I,.eirn,. m,I," t,-C 11 jterRpll iionA-.I-. 1' 7-A0, R-.1r1 I 1 ; C".:-.;.
YSTEN11 yyl DF: !,Vjt(,,ms (C'htptcr 7)
T,jrfi, ('IapI(Jtv 0 n ) PF-,,rcoliition Arn.,,,
I(:,. of Trel I c"I I �s
Lee ICIII I of Trel 1(-.i le`; 0 11)
Invelt Level (111)
No. of
Length of Trei id ies (11) F10.00
1
Invert I Level (111) 0.60
TYPV-: Sce Tret 8 and 9) aild polishilif filter (Socliol-1 ;(J,
ol idal 'Al I I c' I I t ys i I I (G) 1, r s 'i
- I-, � flm
veceivillcl SC tatilt ef -)nt
�4 P- c I ka type Depth of I-ifltei
F
SOO
Constructed Wetiand
F
Polishing Filter: (-Sowl'iuvt 10J)
S-n-face Area (iW)
Option I - Direct Disd lkal
SI-111,3C2 ateLl (11-11
Option 2 - Pi rriped Discharge
Surface arerl (n i ")
Invert Level
F--=
Packaged Secondary
Treati-nent Systems
rcc;eivinq raw vva.,Je-water
(c 1) a Pit p v 9)
I BAF TREATMENT SYSTEM I
Gapacdv PE F6
Sizil I(] of Primary C'u-np, u 111 1r �f i
F—=2.90 i-11
30.00 Option '-' - Gravity Discharge
Ti-enc.,h lencith (1-1))
Option 4 -- Low Pressuo,
Pipe Ustrihutioii
Tct�mch !K�nq'Al (111)
Option 5 - Drip Dispersal
Q, .- '11-face 2re, On,
60=00
E;YSI*E�Vi'!"Y'l'i-,;;-I'c-,i-iiaiy'i't-e,itiiietitsystem aiiciiiifillti,atic)niti-c4�ii.,,ii(i);.aseii(,I je- ., ii(>n 10.2)
Identify purpose of tertial y Provide pel fol-1-1-1 a lire, information Provide design information
treats -lent demcmstratincl sv-stelil v,611 ID'Ovicic'
equired treatment levels
WSCHARC-117, ROUTE:
Groundwater
❑Hydraulic:
Loading Rinlui (1/i WA)
30.00
S I
,-H f2G'-'VVMei'
I 1 1
Disci Rak, (mVhr)
F —=0.04
'16, od
F_— 30=00
t?i.11ai_I"rY /- S ANi,%:
iust'_ificlilvii c; Corrnrlissioinnu
System to be signed off by a suitably qualified person and recommendations in section 5.0 to be adhered to. Package
treatment system must conform to EN 12566-3 standard. Package treatment system to be properly installed and certified by
company supplying the system in accordance with the EPA 2021 code of practice. Keep records of desludging for five years.
Desludge tank as recommended by manufacturer and periodically inspect the system for damage or surface ponding.
Maintenance contract to be agreed by company supplying the package treatment system and contract must be adhered to so
as to ensure that the system continues to function properly.
Company: I Biolabs
efix: Mr Q First Name: IMIchael ", rn:lnfr Holohan
TERERA, SCOTSTOWN, CO. MONAGHAN
GSI / EPA CERTIFIED
=rate of Repot t: 06-Sep-2023
F";oile0868169162 F-mail I biolabsirl@outlook.com
Inden-inity Insurance Nuriber: AP10002262
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WELLS AND BOREHOLES ADJACENT TO THE SITE
yl
5,+
Public Supply Source Protection Areas
SI-Inner Protection Area
SOURCE PROTECTION DATA Q� /AB
SO -Outer Protection Area
VULNERABILITY LOW
BEDROCK SL
MVE RS AVID LAKES
AQUIFER CATEGORY H
t fr
i' . ��'� r► ,fey � �' `fir
9
Y
- i, -. 1•a I E -
Jf f
r �
M
.►"'
l
AERIAL VIEW OF PERCOLATION SITE
T N
SKETCH OF PERCOLATION AREA INCLUDING SITE SURROUNDS
TOP SOIL
l OOMM
GEOTEXTILE LAYER 150MM WASHED
STONE ABOVE PIPE
O IOOMM PIPE I I 0.6M
250MM WASHED
CONE BELOW PIPE
INVERT OF TRENCH
SUITABLE SUBSOIL
MINIMUM 0.9M
Water table /
clay subsoil
EACH TRENCH
MOUNDED TOPSOIL I.2M
GROUND LEVEL
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OUTLINE SPECIFICATIONS FOR MOUNDED SOIL POLISHING FILTER
1. Treated effluent from the mechanical aeration sump unit shall be
Pumped intermittently to the distribution chamber on the raised mound feeding
the 6 percolation trenches. The raised mound shall be 1.2m in height
throughout its area and consist of the topsoil from the site. The mound shall
measure 13m x 15m.
2. The slope of the percolation trenches from the distribution chamber shall be 1
in 200
3. The length of each of the 6 percolation trenches shall be 10m. Total length
60m.
4. The separation distance between the percolation trenches shall be 2m (ie
2.5m centre to centre)
S. Percolation pipes shall be 100mm diameter smooth wall uPVC sewer pipes,
perforated at 4, 6 and 8 o'clock. Perforations shall be 8mm diameter, at
75mm centers along the pipe. Holes shall be checked before installation to
ensure they are free from debris.
6. The width of each percolation trench shall be 500mm.
7. The depth of each percolation trench shall be 600mm below the mound
surface.
8. Percolation pipes shall be laid on a 250mm bed of washed gravel, having
particles in the range of 8 - 32mm.
9. Pipe surround shall be washed gravel, having particle size in the range 8 -
32mm.
10. Pipe cover shall be 150mm depth of washed gravel, having particle size in
the range of 8 - 32mm.
11. Geotextile layer to be placed on top of this followed by 100mm topsoil to
top of mound.
12. Geotextile shall be in accordance with EN ISO 10319.
Access / inspection points and vents shall be provided for the ends of the
percolation pipes. Covers shall be visible and installed to prevent the
ingress of water. They shall be suitable for rodding and scouring purposes.
13. A surface land drain 1m deep shall be employed all around the raised
mound soil polishing filter and not closer than 2m to divert surface
water away from it.
SCHEDULE OF SITE SEPARATION DISTANCES
PACKAGE TREATMENT SYSTEM
. Minimum distance to any dwelling = 7m
. Minimum distance to site boundary = 3m
. Minimum distance to trees = 3m
. Minimum distance to roads = 4m
. Minimum distance to slope breaks = 10m
. Minimum distance to watercourse / streams = 10m
. Minimum distance to soakaway = 10m
. Minimum distance to open drain = 10m
. Minimum distance to lake or foreshore = 50m
able 6.3 EPA Code of Practice 2021
POLISHING FILTER
. Minimum distance to any dwelling =10m
. Minimum distance to site boundary = 3m
. Minimum distance to trees = 3m
. Minimum distance to roads = 4m
. Minimum distance to slope breaks = 10m
. Minimum distance to water course / stream =10m
. Minimum distance to soakaway = 10m
. Minimum distance to open drain = 10m
. Minimum distance to lake or foreshore = 50m
. Minimum distance to up gradient well = 15m
. Minimum distance well on same level = 30m
. Minimum distance to down gradient well = 40m
6.31 EPA Code of Practice 2021 unless stated otherwise
GEOTEXTILE LAYER
TOP SOIL
100MM
150MM WASHED
STONE ABOVE PIPE
O 100MM PIPE
250MM WASHED
CONE BELOW PIPE
SUITABLE SUBSOIL
MINIMUM 0.9M
Water table /
clay subsoil
EACH TRENCH
500MM WIDE
0.6M
INVERT OF TRENCH
MOUNDED TOPSOIL 1.2M
GROUND LEVEL
SECTION THROUGH MOUNDED SUBSOIL. PERCOLATION SYSTEM
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