HomeMy WebLinkAbout2636 - Site Assessment ReportTraynor
En O r nmcnmlLrd.
07 MAY 2026
PAUL GILDERNEW
TULLYCOORA
® a
z ua
a°C
z
o w '-
Ln Lfl
W
oc H W
Q J OC
Q
�E-
LM N
H
In
ORAM
CASTLEBLAYNEY
CO. MONAGHAN
FLANNINC Gt:.n i �rir=►vi
REF. NO.
26 /S6
IN ACCO
N CO. COUNCIL
EPA CODE OF PRACTICE
WASTEWATER TREATMENT AND DISPOSAL
SYSTEMS SERVING SINGLE HOUSES 2021
Traynor Environmental Ltd
Belturbet Business Park, Creeny, Belturbet
Traynor Co. Cavan
Emirnnmrntof Ltd.) Tel: +353 49 9522236
Fax: +353 49 9522808
Web: www.traynorenvironmental.com
1ra}nor
1.0 GENERAL DETAILS (From planning application)
Name(S) I Paul Gildernew
Address of Correspondance
Site Location and Townland
Tullycoora
Tullycoora
Oram
Oram
Castleblayney
Castleblayney
Co. Monaghan
Co. Monaghan
Number of Bedrooms 4 Maximum Number of Residents: 6
Comments on population equivalent
6PE is the maximum capacity of the dwelling
Proposed Water Supply:
Mains: Private Well/Borehole Group Well/Borehole
2.0 GENERAL DETAILS (From planning application)
Soil Type, (Specify Type):
Soil Association 29
Acid Brown Earths (7591.), Interdrumlin Peat & Peaty Gleys (25%)
Subsoil, (Specify Type): Sandstone and shale till (Lower Palaeozoic)
Bedrock Type: I SMV — Silurian Metasediments and Volcanics
Aquifer Category: Regionally Important n Locally Important n Poor I I
Vulnerability: Extreme ❑ High Moderate ❑ Low ❑
Groundwater Body: IEGBNI_NB_G_019 Status Not at Risk
Name of Public/Group Scheme Water Supply within 1km: Oram Group Water Scheme
Source Protection ZOC n/o SI n/1. SO n/1. Groundwater Protection R1
Area: Response:
Presence of Significant sites I None evident within the locality
(Archaeological, natural and historical):
Past experience in the area: Variable percolation characteristics of the topsoil and subsoil
materials.
Ri = Acceptable subject to normal good practice. Site maybe suitable for discharge to ground, lithe minimum depths are met
on the site and if there exists suitable percolation. As the soil type in the area is Acid Brown Earths (75% of the land area), and
as the area is mapped as 'High' Vulnerability. Groundwater as a resource will be at risk if the minimum depths required are
not achieved on the site, or if the percolation rate is too rapid. Older wells in the area may also be at risk, if the minimum
separation distances are not adhered to. Groundwater and wells are therefore the main targets, following the desk study.
Given the response and the aquifer type, the site is potentially suitable for a conventional septic tank system if the minimum
depths required are met on the site, if the minimum separation distances can be met, and if the percolation rate is adequate.
'This figure of 6 people refers to the potential 6 people maximum that will stay at the proposed dwelling at any one time.
Tr 11
3
3.0 ON -SITE ASSESSMENT
3.1 Visual Assessment
Landscape Position
Slope Steep <1:5
Slope Comment I
Surface features within a minimurr
Houses
Existing Land Uses
Vegetation Indicators
Relatively Flat
Shallow 1.5 to 1.20 1 1 Relatively Flat I ✓
in south direction
of 250 metres (Distances to features should be noted in metres)
Neighbouring house located >60m North from the proposed percolation area
(ppa).
Agricultural Grassland
Grass is the predominant vegetation throughout the site.
Groundwater Flow Directions South Direction
Ground Condition
Site Boundaries
Roads
Outcrops (Bedrock and/or
subsoil)
Surface water ponding
Lakes
Beaches/Shellfish Areas
Wetlands
Karst Features
Watercourses/Streams
Drainage Ditches
Springs
Ground conditions are best described as dry and firm throught-out the site in
the ppa.
Hedge located to the East from the ppa.
Local road located >75m North from the ppa.
No outcropping rock evident within the locality.
No surface water ponding evident in the ppa when examined on 24.03.26. It
must be noted that weather conditions prior to the site assessment taking
place was generally mild.
None occur within 50m of the ppa.
None occur within 200m of the ppa.
None occur within 200m of the ppa.
None occur within 200m of the ppa.
None occur within 10m of the ppa.
None occur within 10m of the ppa.
If a well is to be bored onsite it should be located at least 30m up -gradient
from the ppa; this will therefore be outside the minimum separation distances
of the Groundwater Protection Responses of GSI/EPA/DoELG and the EPA Code
of Practice (2021). As all the wells in the locality will therefore meet the
required separation distances of the Groundwater Protection Responses of
Traynor
FnNrmxmol lid.
GSI/EPA/DoELG and the EPA Code of Practice (2021), none are deemed to be
at risk from the proposed polishing filter's installation.
As all the wells in the locality will therefore meet the required separation
distances of the Groundwater Protection Responses of GSI/EPA/DoELG and the
EPA Code of Practice (2021), none are deemed to be at risk from the proposed
polishing filter's installation.
Integrate the information above in order to comment on:
1. The potential suitability of the site:
The site still seems suitable for discharge to ground.
2. Potential targets at risk:
Following the desk study surface water was thought not to be at risk; this was corroborated during the visual
assessment.
There appears to be few issues with respect to impermeability. From this, surface water does not seem to be a
potential target,
Groundwater is still a target following the visual assessment, unless the minimum depths required are met on
the site and there exists adequate percolation.
3. The suitability of the site to treat the wastewater:
Following the visual assessment it is seen that all appropriate separation distances can be met and the site
seems well drained, and pending confirmation of the presence of adequate depths of unsaturated soil and
subsoil within the percolation area, as well as sufficient percolation rates under the site, the site should be
suitable for treating wastewater adequately.
Ira'P,nor
Fnrirmmrmal I'j - 5
Sketch of site showing measurement to Trial Hole location and Percolation test Hole locations, wells
and direction of ground water flow, proposed house (incl. distances from boundaries) adjacent
houses, watercourses, significant sites and other features. North point should always be included.
SITE LAYOUT DRAWING SHOWING TEST HOLE LOCATIONS
Approximate Location of Trial Hole & Percolation
Test Holes Examined on 24.03.2026
I I
Ir l I H lr�`
II .. � i �
I{ I it
rou dw er F w
E L -TI TE T ITE ecti n
Traynor
fmimmmrn�nll ' 6
3.2 Trial Hole
Should be a minimum 2.10m deep
Depth of Trial Hole
2.10m BGL
Depth from Ground Surface to
None
bedrock (m) if Present
Encountered
Depth of water ingress
2.10m
Date and Time of 22,03.2026 12.00
Excavation
Depth of
Subsurface
& Surface
Soil/Subsoil
Texture
Classification
Plasticity
and
Dilatancy
Soil
Structure
Density
Compactness
Colour
Preferential
Flowpaths
0.1m
Depth of
Surface
Test
Silt/Clay
Ribbons
30.30.40
2,2,2Threads
Crumb
Low
Brown
Silt/Clay
0.2m
0.3m
0.4m
Clay intermixed
With stone
GWT
Ribbons
40.40.50
2,3,3Threads
GWT
Crumb
GWT
Low
GWT
Brown
GWT
GWT 0.
0.5m
Depth of
Subsurface
Test
0.6m
0.7m
0.8m
0.9m
1.0m
1.1m
1.2m
1.3m
1.4m
1.5m
1.6m
1.7m
1.8m
1.9m
2.Om
2.1m
2.2m
EVALUATION:
Weather conditions: Mild
According To The Flowchart For Describing Subsoil's based on B55930:1999, the subsoil is best described as Clay
intermixed with stone
Groundwater was encountered in the trial hole at a depth of 2.10m. Winter groundwater not encountered in the
trial hole. Bedrock was not encountered in the trial hole.
Depth from Ground Surface to I None
Water Table (m) if Present Encountered
None
Rock Type if Present
Encountered
Date and Time of 24.03.2026 13.00
Examination
Likely Subsurface Percolation <90.00 *Note: Depth of percolation test holes should be indicated
Value: min /25mm on log above (Enter Subsurface & Surface Depths as
Likely Surface Percolation <90.00 appropriate)
Value: min /25mm * See Appendix E for BS5930 Classification
** 3 samples to be tested
*** All signs of mottling should be recorded.
7}a� nor
mrmel liJ.� 7
3.3a Subsurface Percolation Test for Subsoil
Step 1 Test Hole Preparation
Percolation Test Hole
1
2
3
Depth from ground surface
150
150
150
to top of hole (mm) (A):
Depth from ground surface
to base of hole (mm) (B):
550
550
550
Depth of hole (mm) (B -A):
400
400
400
Dimensions of hole [length
x breadth (mm)]:
300 x 300
300x300 300
300x300
Step 2 Pre -Soaking Test Holes
Pre-soak Date 23.03.2026 23.03.2026 23.03.2026
start Time 08.00 08.01 08.03
2nd pre-soak Date 23.03.2026 23.03.2026 23.03.2026
start Time 14.15 14.16 14.17
Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before
refilling.
Step 3 Measuring Tioo
Percolation Test Hole 1 2 3
Date of Test 24.03.2026 24.03.2026 24.03.2026
Time Filled to 400mm 13.00 13.01 13.02
Time Water Level at I I
15.29 15.33 15.37
300mm
Time to drop 100mm (Tioo) 149.00 152.00 155.00
Average Two 152.00
If Tioo>480mins then Subsurface Percolation value >120 —site unsuitable for discharge to ground
If Tioo ≤ 210mins then go to Step 4
If Tioo≥ 210mins then go to Step 5
Traynor
FnNmnmrmal l�J.�
Step 4 Standard Method (where Tioo 5 210min)
Percolation
1
Test Hole
Start Finish at
Fill No. Time at Time at
300mm 200mm (min)
2
Start I Finish Iat
Time at Time at
300mm 200mm (min)
3
Start Finish
Time at Time at At (min)
300mm 200mm
15.30 18.03 153.00 15.34 18.09 155.00 15.38 18.17 159.00
2 18.04 20.42 158.00 18.10 20.50 160.00 18.18 21.02 164.00
20.43 23.27 164.00 20.51 23.37 166.00 21.03 23.53 170.00
Average t 158.30 160.30 164.30
Average At/4 = Average At/4 = Average At/4 =
39.58 40.08 41.08
[Hole No. 1] [Hole No. 2] [Hole No. 2]
Result of Test: Subsurface
40.24 min/25mm
Percolation Value:
Comments
I Good percolation characteristics of the subsoil
Soil Removed From the Trial Hole
Tra;-nor
Fmimnnm�all - 9
3.3bSurface Percolation for Soil
Step 1 Test Hole Preparation
Percolation Test Hole
1
2
3
Depth from ground surface
to top of hole (mm) (A):
0
0
0
Depth from ground surface
to base of hole (mm) (B):
400
400
400
Depth of hole (mm) (B -A):
400
400
400
Dimensions of hole [length x
breadth (mm)]:
300 300
300 x 300
300
300x300
Step 2 Pre -Soaking Test Holes
Pre-soak Date 23.03.2026 23.03.2026 23.03.2026
start Time 08.05 08.06 08.08
2nd pre-soak Date 23.03.2026 23.03.2026 23.03.2026
start Time 14.19 14.20 14.21
Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before
refilling.
Step 3 Measuring Tioo
Percolation Test Hole
1
i
I
2
3
Date of Test
24.03.2026
24.03.2026
24.03.2026
Time Filled to 400mm
13.05
13.07
13.08
Time Water Level at
15.21
15.26
15.32
300mm
Time to drop 100mm 136.00 139.00 144.00
(Tioo)
Average Two139.60
If Tioo>480 minutes then Surface Percolation value >90 — site unsuitable for discharge to ground
If Tioo ≤ 210mins then go to Step 4
If Tioo≥ 210mins then go to Step 5
Traynor
Fnmmmrniol - 10
Step 4 Standard Method (where Tioo ≤ 210min)
Percolation
Test Hole
Fill No.
2
Start I Finish Iat
Time at Time at
300mm j 200mm (min)
3
Start Finish
Time at Time at At (min)
300mm 200mm
15.22 17.42 140.00 15.27 17.48 142.00 15.33 18.02 149.00
17.43 20.08 145.00 17.49 20.17 148.00 18.03 20.37 154.00
20.09 22.40 151.00 20.18 22.52 154.00 20.38 23.20 162.00
Average At 145.30 148.00 155.00
Average At/4 = Average At/4 = Average £t/4 =
36.33 37.00 38.75
[Hole No. 1] [Hole No. 2] [Hole No. 2]
Result of Test : Surface Percolation
37.36 min/25mm
Value
Comments
Good percolation characteristics of the topsoil
Traynor
r"Nnmmmi LL!J.. 1 1
4.0 CONCLUSIONS of SITE CHARACTERISATION:
Integrate the information from the desk study and on -site assessment (i.e. visual assessment, trial hole and
percolation tests) above and conclude the type of system(s) that is (are) appropriate. This information is also used
to choose the optimum final disposal route of the treated wastewater.
Slope of Proposed Infiltration/treatment area
Are all minimum separation distance met?
Depth of unsaturated soil and/or subsoil beneath invert of gravel
(or drip tubing in the case of drip dispersal system)
Percolation test results: Surface:
Not suitable for Development
Identify all suitable options
37.36min/25mm
Sub -surface:
Suitable for Development
1.200
Yes
0.90m
40.24min/25mm
Discharge Route
1. Septic tank System (Septic tank and percolation area) IGroundwater
(Chapter 7)
2. Secondary Treatment System (Chapters 8 and 9) and soil
polishing filter (Section 10.1)
3. Tertiary Treatment System and Infiltration/treatment area
(Section 10.2)
5.0 RECOMMENDATION:
Traynor Environmental recommends that an O'Reilly Oakstown Treatment System or
Propose to install similar manufactured EN certified system and gravity discharge into 500mm wide
trenches (Option 3 EPA Code of Practice 2021).
And discharge to
Groundwater
Invert level of the trench/bed
0.80m Below Ground Level (BGL)
gravel or drip tubing (m)
Site Specific Conditions (if any) e.g. special works, Site Improvement Works, Testing etc.
The tests showed that the site has a Sub -surface value rating of 40.24min/25mm indicating adequate percolation
characteristics of the Sub -surface. A surface value rating of 37.36min/25mm was attained indicating adequate
percolation characteristics of the surface. Groundwater was encountered in the trial hole at a depth of 2.10m.
Winter groundwater was not encountered in the trial hole. Bedrock was not encountered in the trial hole.
A purpose-built polishing filter should be constructed to ensure that there is a minimum of 0.90m of suitable
percolating material between the base of the lowest part of the percolation area at all times. The distribution pipes
used in this system will be smooth walled, have a diameter of 100mm, have 8mm holes drilled in them 75mm apart,
and each pipe should be spaced parallel and 2500mm centre to centre apart.
Traynor Environmental Ltd also recommends that the O' Reilly Oakstown Treatment System and polishing filter
construction is overseen by a suitable qualified and accredited person.
Tray nor
Fnnrmmrmul 1 iJ. �
12
6.0 TREATMENT SYSTEM DETAILS
SYSTEM TYPE: Septic Tank System (Chapter 7)
Tank Capacity (m2) N/A Percolation Area
Mound Percolation Area
No. of Trenches N/A No. of Trenches N/A
Length of Trenches (m) N/A Length of Trenches (m) N/A
Invert Level (m) N/A Invert Level (m) N/A
SYSTEM TYPE: Secondary Treatment System (Chapters 8 and 9) and polishing filter (Section 10.1)
Secondary Treatment Systems receiving septic tank effluent (Chapter 8)
Package Treatment Systems
Deep of Filter Invert Level
Media Type Area (m2)
receiving raw wastewater
(m) (m)
(Chapter 9)
Sand/Soil N/A N/A N/A
O' Reilly Oakstown
Type
Treatment System
Soil 80m (SNo. 10m 300mm 0.10m BGL
Capacity PE 8
Trenches)
Constructed
N/A N/A N/A
Sizing of Primary Compartment
Wetland
Other N/A N/A N/A
4 m
Polishing Filter: (Section 10.1)
Surface Area Sand Filter (m2) N/A No. of Trenches N/A
Option 1— Direct Discharge Surface area (m2) N/A Length of Trenches (m) N/A
Option 2 —Pumped Discharge Surface Area (m2) N/A Invert Level (m) N/A
SYSTEM TYPE: O'Reilly Oakstown Treatment System and infiltration/ treatment area
(section 10.2)
Provide performance information
Provide design information
Identify purpose of tertiary treatment demonstrating system will provide
required treatment levels
O'Reilly Oakstown Treatment
System and Soil Polishing Filter
DISCHARGE ROUTE:
Groundwater V Hydraulic Loading Rate (I/m2. d) 900 Surface Area (m2)
Surface Water Discharge Rate (m3/hr) 0.011
QUALITY ASSURANCE:
Installation & Commissioning
Recommend to be overseen by plant supplier.
Traynor
fn�.��,„.a. 13
On -going Maintenance
Maintain and de -sludge annually
7.0 SITE ASSESSOR DETAILS
Company: Traynor Environmental Ltd
Prefix: Mr. First Name: Nevin Surname: Traynor
Address:
Qualifications/Experience:
Belturbet Business Park,
Creeny,
Belturbet,
Co. Cavan.
BSc. Env, H.Dip I. T, CertSHWW, EPA/FAS Course Certified
Professional Indemnity Insurance Holder (Cl million cover)
Date of Report: 14.04.2026
Phone: 049 9522236 Fax: 049 9522808 E-mail: nevin@traynorenvironmental.com
Indemnity Insurance Number: 24/1/03161 (Renewed 12"' July 2025)
Signed:
Nevin Traynor
BSc. Env, H.Dip I.T, Cert SHWW, EPA/FAS Cert.
For Traynor Environmental Ltd
Traynor
Fnmm�mrmal l id. � 14
Plan View
is
HE
Traynor
15
8.0 SITE PHOTOGRAPHS
Facing North From the Facing South From the
Proposed Percolation Area Proposed Percolation Area
0.
— try'-
Facing East From the Facing West From the
Proposed Percolation Area Proposed Percolation Area
1I); {•r•
f.r
Trial Hole - Front View Trial Hole - Side View
F ,
• .i., it,
Traynor
16
Percolation ('T") Percolation ("P")
w:'
-` �� � t"!���,j%Lb�t'-6y - %��.�.i�r• j •�_L ,i"�\y � .
� 'Ip }y yJi' 1� ' •� �'��a1t�P � X �' �► i n '�r , `111
.CLYi•ra / t rh ;'Vj+„ J j ! f li� r� -j �@ �1 \� / e .�Jr _ i �l! ,p:..� r 'T�.� ,i
Percolation ('T") Percolation ("P")
. ,} vR�"/ {�,h �1 •.� ��.YK���+�,),; ,{. J � �'� tJ 1�'t 1 � �,{�'M-.{ f M J'S� 1t�L � /.e� r' tp .
�t l y� 1 / .� .\ •per ! �Y�6Y�' "Y4 �B�_K `�.
•��.,`y� ,y � �.. J � i P iii n �y
� �'sr,,�",'1,fi�"Xa'@Z�= 11 '�•:4k #` n tr`,? .aQw � _S - , ��h��.+ •� a �'.-y ��"'�` / tyi� ". _ A
.:1,�1'�^^,ri•i � ; � -.. �' � k�Y � ��! +143'iir`at�i+�"� i���V, ',
Percolation ('T") 1 Percolation ("P")
"•` F } lyx '.1 - �SRlrjl T4 "yA� r)`'
1! ii �R' wit •dF�y.ixA'^gw,+S+y'tn�`� �jJ119 � �� ,N I _ ~Rt
� � t i \ r � ₹� L\ y�.2f F �i� 111y "�*'"•� e1. a� i�;
t 1 �
r 1
T, w._ :'�a/•{=7�i�n,l',,{µIr.�G ?�''t- �•"y Q'��:rh;'t,�th;'
1 r.C f / •n�,Atl► i, �. �y a, '',,, :� h }r,°i �9 t��{}it�l�i 1 fr•��C,•oZv
• ��. «r,.'dl!'r.i:r ;u».d;9, a t/ffzt4+h�i`'Sj� .k..S S r� d,•/ /' 9i/t�J1\:�e @A
�(ra�nor
'�'t 1n�imnmrmul liJ." 17
Maps Used As Part of the EPA Site Suitability Assessment
Groundwater/Aquifer Map
From the GSI Groundwater
Aquifer Map Site is
classified as PI — Poor
Aquifer - Bedrock which is
Generally Unproductive
except for Local Zones
Vulnerability Map
From the GSI Vulnerability
Map Site is classified as
High
Traynor
Fnhrmmmial l�d.� 18
Bedrock Map
From the GSI Bedrock Map
Site is classified SMV —
Silurian Metasediments and
Volcanics
Teagasc Subsoil Map
r*i
From the Teagasc Subsoil
Map Site is classified as
Sandstone and shale till
(Lower Palaeozoic)
Traynor
Fn,,n v uHd 19
9.0 EPA/FAS CERTIFICATE
�iFETAL
National Skills Ce,t1/lualc
(FAS)
Awarded to
Krcnnto or
Nevin Trapnor
who has achieved the Nat onaI Standards for
u Dlwur Cuighdedlr Nirfsi4nta amach maidir le
Site Suitability Assessment for On -Site
Wastewater Treatment Systems
F/Nsc 003535
sTraynor
�,, 20
10.0 P.1 INSURANCE
Griffiths & Armour Europe DAC Griffiths&
15 Gorge's U.,3y _ +353(0)1 982 8789
2 - mfo gnfithsandarmour.com Armour
tic'. '99 griflithsandarrnour.com
An Aon Company
PROFESSIONAL INDEMNITY INSURANCE
We confirm the following details relating to our client's Professional Indemnity Insurance:
Insured: Traynor Environmental Ltd
Address: Belturbet Business Park
Creeny
Belturbet
Co. Cavan
H14AY94
Lead Insurer(s): Arch Insurance (EU) dac and a panel of co-insurers
Period of Insurance: 12 July 2025 to 11 July 2026
Policy Number: 24/1(03161
Limit of Indemnity: €1,500,000 any one claim and unlimited in the period of insurance
Signed:
Graeme Tinney
Chief Executive Officer
Griffiths 8 Armour Europe DAC
Date: 27 June 2025
The policy is subject to the insuring agreements. exceptions, exclusions. limitations, conditions and declarations contained
therein. The above is accurate at the date of signature. No obligation is imposed herein on the signatory to advise of any
alteration.
oirecmrs: G Ttrwe_y C Evans ftJ(l D J Wn3fleyl1JK) T Cosgro.v !Non-Execu vej
Regislet a7 In iretana No. 63226&
Regislered OF:Vx:ylear 3Paramwlt Coun Corlg Road yanhtloid Euthess Prt WWI 13 D15R5C7 Irelans
0000,5 8 Atmour Europe Desilruted A ltM Corrfrg'. trading as c-ourtras a Arrwur Is regUaied by lye Cer3aI Bans N 1051515
VAT No. €5561390
Alt Acn Company
DE[lomte
1 ra}•nor
Fm, .t ltd., 21
PROPOSAL
FOR
O'REILLY OAKSTOWN TREATMENT SYSTEM
PREPARED
FOR
PAUL GILDERNEW
TULLYCOORA
ORAM
CASTLEBLAYNEY
CO. MONAGHAN
Traynor
Fnhmnmenml I iJ. �
22
TRAYNOR ENVIRONMENTAL LTD
EPA SEWAGE LOADING SIZING CHART - PAUL GILDERNEW
Situation
Source
Litres/day
Person
BOD5 g/d
Person
PE Organic
Loading
Number of
Persons
Population
(Organic)
Hydraulic
Loading (Lit)
Organic
Loading (gr)
Pupulation
(Hydraulic)
Oonreslic
Normal Resident
150
60
1.00
6
6
900
360
6.00
Industrial
Office and/or factory without canteen
30
20
0.33
0
0
0
0.00
Office and/orfactory with canteen
60.0
30.0
0.5
0
0
0
0.00
Open Industrial Site e.g. Quarry
40.0
25.0
0.4
0
0
0
0.00
School
Non- residential with cooking on -site Students
60.0
30.0
0.5
0
0
0
0.00
6hr Shock
Non-residential with no -cooking on site
35
20
0.33
0
0
0
0.00
Football dubs
Players Incl. showers
30
20
0.33
0
0
0
0,00
Spectators - Toilet blocks
8
10
0.17
0
0
0
0.00
Amenity Sites
Restuarants
15
15
0.25
0
0
0
0.00
Function rooms
10
10
0.17
0
0
0
0.00
Toilet blocks (per use)
8
10
0.17
0
0
0
0.00
Toilet blocks (long stay car parks)
10
15
0.25
0
0
0
0.00
Golf clubs
25
15
0.25
0
0
0
0.00
Squash, with club house
25
15
0.25
0
0
0
0.00
Swimming
10
10
0.17
0
0
0
0.00
6
900
360
6.00
Loadings
Population Org
6.00PE
Hydraulically
6.00PE
Treatment System Proposed: O'Reilly Oakstown Treatment System & Perolation Area
Date: 14th April 2026
Applicant Name: Paul Gildernew
Site Address: Tullycoora, Oram, Castleblayney, Co. Monaghan
Design Capacity: Maximum number of residents: 06
No. of single bedrooms: 00
No. of double bedrooms: 04
A representative of O'Reilly Oakstown Ltd has assessed the Soil Test Report
and confirms the suitability of their Oakstown BAF 8PE Wastewater Treatment
System to treat effluent being discharged from the above proposed dwelling
based on the residential demands submitted to us above.
1. Waste Water Treatment System Design Details:
- Maximum Daily Design Loadings as per client
Max
Flow
Total
B0D5
Total Organic
No. of
Litres/day/person
Hydraulic
(grams/day/person)
Loading
users
Load
(grams/day)
6
150
900 litres
60
360
Total Organic Loading
0.36kg BOD/day
Total Hydraulic loading
0.90m3 /day
- Average treated effluent standard - see performance results on
EN -1 2566-3 certification attached
BOD
8mg/litre
TSS
12m /litre
Ammonia
13m /litre
[-Proposed system details: ► Oakstown BAF 8 P.E.
Volume of Total Plant
8m3
Volume of Primary Sedimentation
Chambers
4m3
Volume of Secondary Aeration Chamber
2m3
Volume of Biomedia
1.0m3
2. Wastewater Treatment system description:
The Oakstown BAF 8 PE is designed to provide proven, cost effective primary
and secondary wastewater treatment in robust steel reinforced concrete
tanks.
The primary sedimentation chamber has substantial capacity (4m3) to allow
anaerobic digestion to occur naturally while letting sludge settle on the tank
floor.
Once primary treatment has taken place the effluent is further degraded in the
aeration chamber where oxygen enriched wastewater provides ideal
conditions for aerobic bacteria to thrive.
Before pumping to the percolation area the clear water is left to further settle
in the clarifier chamber to eliminate any remaining settle able solids.
3. Guarantee and warrantees:
O'Reilly Oakstown provide a 12 month maintenance service contract on all
systems from date of first occupation. We provide a 24 month warranty on all
parts.
4. Percolation:
The percolation area designed must conform to the requirements of Table 10.1
of EPA Code of Practice 2021 Wastewater Treatment and Disposal System
serving single houses.
The percolation area requirements are as follows:
Sub Surface value: 40.24min/25mm as per Site Characterisation Form.
Surface value: 37.36min/25mm as per Site Characterisation Form.
Depth from ground surface to water table: None Encountered
Depth from ground surface to winter groundwater level: 2.10m BGL
Depth from ground surface to bed rock: None Encountered.
►See Site Characterisation report for percolation area details.
5. Client Responsibilities unless included in our quotation:
• Excavation and backfill.
• Construction of the percolation / polishing filter as recommended by the
site engineer on the Site Characterisation report and/or drawing.
• Provision of access for delivery by hi-ab truck to within 3 metres of the
excavation.
• Provision of a power ducting from the tanks to the house/garage.
• Mounting and connection of control panel to mains power in the
house/garage.
6. Operation and Maintenance:
The client is responsible for the operation and maintenance of the wastewater
treatment system in accordance with the owner's manual supplied by O'Reilly
Oakstown.
Please do not hesitate to contact us if there are any further queries.
Yours sincerely,
Institute for
Wastewater
Technology
PERFORMANCE RESULTS
O'Reilly Oakstown Environmental
Oakstown, Trim, Co. Meath, Ireland
EN 12566-3 Annex A, B, C
"Small wastewater treatment systems for up to 50 PT"
Small wastewater treatment system Oakstown BAF System
submerged aerated fixed film bioreactor
Nominal organic daily load
Nominal hydraulic daily load
Material
Watertightness
Crushing resistance
Treatment efficiency (nominal sequences)
Electrical consumption
PIA - Pri.ifinstitut fir Abwassertechnik GmbH
(PIA GmbH)
Hergenrather Weg 30
D-52074 Aachen
Certified according to
!SO 9001:2000 t
d,
Notified Body number: 1739 .
rc
0.38
kg/d
1.20
m3/d
steel reinforced
concrete
pass
pass
Efficiency
Effluent
COD
93.0 %
46 mg/I
BOD5
97.5 %
8 mg/l
NH4-N
61.0%
13 mg/I
SS
96.7 %
12 mg/I
2.0 kWh/d
\t tabtiasse�l���
2 JY
Elmar lance October 2011
INSTRUCTIONS
BAF System
When choosing the location to dig, first consult your Site Characterisation Report as submitted to the
planning authority. This will show the proposed location of the system and the design of the percolation area
in detail. It will also note the presence of rock or a high water table, in which case a rock -breaker or
water -pump can be organised in advance. It is important to observe the EPA Separation Guidelines as
shown below. See table 1. These show the minimum distance the system and percolation area may be from
the house etc.
FEATURE
MINIMUM SEPARATION (m)
Oakstown BAF Sewage treatment System Recommendations
Oakstown BAF Sewage treatment System
Irrigation Area
Dwelling served
7(11
10(3>
Adjacent dwelling
7(11
10(31
Wall
3(11
3
Road
4(11
4
Site boundary
3(11
3
Portable water source
10
30 - 100(21
Watercourse
10
10
Ensure that there is a solid unimpeded access for the Oakstown truck back to the hole. Clear any build up
of clay from around the hole to allow the truck to reverse to within one metre of the hole.
In very wet conditions, it is best to leave the last few bucketfuls to be dug when the truck arrives. If the
ground is rocky, it is advisable to dig the hole ahead of time to minimise delays on -site.
Q Ensure there are no power lines or other hazards above the excavation site.
O We recommend an inspection chamber (AJ) be fitted just before the BAF Unit.
Digging Instructions
fl Generally the Oakstown BAF 2 -Tank System is installed side by side as follows: See Diagram 1.
Dig a hole 3300mm (11ft) square. This comfortably accommodates both tanks and leaves space to fit the
connecting pipes. The depth of the hole for the first tank is 1500mm (5ft) below the inlet pipe.
Inspection
915mftAJ
mChamber 2400mm 8-0,.
secondary ? E
primary
treatment I of
tank
tank O q:
Two Tank BAF Unit 3300mm
as shown from above 11-0"
'---------------------------------------------- ----------------------------------------------------.....----------- =
Oakstown, Trim
Co. Meath
Telephone: 046-943- 1389
Fax: 046 - 943 - 7054
E-mail: info@oreillyoakstown.com
Web: www.oreillyoakstown.com
•� •
BAF System
INSTRUCTIONS
The second tank sits 150mm (6inch) Q,!n!et
lower as shown in Diagram 2:
® E.
E
in
in:
Two Tank BAF unit
as shown side by side
150mm
When fitting tanks in tandem, dig a hole 6700mm (22ft) long by 1825mm (6ft) wide. Again dig 1500mm
(5ft) below the invert for the first tank and drop 100mm (4inch) for the second tank.
Although it is not essential, a bed of screenings will help to ensure a level surface for each tank.
Before fitting the connecting pipe, backfill between and around the tanks with clay. Compact the clay
underneath the connecting pipe with the digger bucket and cover the pipes with sand/gravel when fitted, to
prevent the pipe sinking under pressure.
r Please make sure that the final finished ground level is 75mm (3inch) below the top of the risers to
prevent flooding of the electronic controls in exceptionally wet weather. If in doubt, we can hold off on
commissioning the system until landscaping is finished and fit extra risers then if required.
Our driver will leave sufficient 7 -Core Cable to reach the house. Our technician will commission the system
by installing the air pump, water pump and electronic controls and wiring them at the system. He will leave
the "internal panel" for connection by your electrician to the mains with the most senior person on site. If
there is nobody on site, it will be left inside the "Green Box" on the system itself,
Percolation
® It is important to refer to the relevant Site Characterisation Report for size and design of the percolation
area. The following diagram is only a simple outline.
25 - 40mm Screening %
From Dwelling a
110mm Piping N y
I Distribution Box
Inspection
Chamber 32mm H drodare o Trench
AJ o
N y Fall of 1:200 in Percolation Pipe
- __IL................_
................---------- A ---
4m E ,
❑ ❑ minimum o 100mm Percolation Pipe
N y
secondary
primary tank: treatment
tank Length of pipe dependant on soil type. Percolation bed dependant on
❑ water table. Consult O'Reilly Oakstown if in doubt.
Sample Percolation Area
(NOT TO SCALE)
Maintenance
M
Please call O'Reilly Oakstown when moving in or when the system has been connected. Our technician
will carry out a site visit to ensure the system has been wired, switched on and the risers are above the
surrounding topsoil. A technician will visit the site to carry out a full service towards the end of the first year.
------------------------------------------ ----------- '
BAF ePE WTS :: 11/1,
Oakstown, Trim
Co. Meath
Telephone: 046 - 943 - 1389
Fax: 046 - 943 - 7054
E-mail: info@oreillyoakstown.com
Web: www.oreillyoakstown.com
Oakstown 8PE BAF SYSTEM Sectional Elevation
TWO CHAMBER PRIMARY HOLDING TANK EXCESS BIOLOGICAL THREE CHAMBER BAF UNIT
INSPECTION ACCESS ACCESS ISLUDGE REMOVAL ACCESS ACCESS
�
CHAMBER COVER COVER CO COVER COVER
1 COMPRESSOR
y
INLET
y _ _
vencounox nnen
SECONDARTTREATMENT
CHAMBER WITH AIR DISTRIBUTIONL.UMEREL-AL
AND RIO -MEDIUM
W WTS LAYOUT - OPTION A
2720
2720
TWO CHAMBER PRIMARY HOLOINO TANK I
THREE CHAMBER BAF UNIT
II
II I
I
III Aw towaeB
INSPECTION
1f '
�t
r
INLET
i I'
u�I I
'' 'I
II
IIi ii i iI
p
^�
Ii II iI
II II
�- II II I II
WWTS LAYOUT -OPTION B
2720
TWO CHAMBER PRIMARY HOLDING TANK
I
INSPECTION
CMAl,1BER
! I i I
INLET y
I I Q t
li
O
�I jl
I' ii
it
THREE CHAMBER BA? UUNIT
T „-,T--------------n
PatAu
Ir{r�hr� III
tp'�.LI
II
I II 1. I I'I
yDILRAF
PROJECT: SR -BR OR III Oakslow
'y n
O' REILLY OAKSTOWN LTD.
/■ O'REILLY OAKSTOWN
LITRES: 8000
BAF- WASTEWATER TREATMENT SYSTEMS
TRIM. o.MEATH JM�
Io@}Ma�i�F lulmvRmm
O'A�II.LY
TITLE:
WEIGHT:
TANK 1: BSOOkg
SPE BAF SYSTEM
rol
e� 1 .xlo�Rloa,Iav
SCALE:
owG ND.
SET.
DAVE
TANK 2: ssoBLy
O'RIilILLY
—ConCTete—
DRAWN:
CHECKED:
T.Nicinski
D. O'Reilly
N.C.R.
OARSPo1>o.
anon
lOOSES