HomeMy WebLinkAbout2643 - Site Assessment ReportPLANNING DEPARTMENT
REF. NO.
N°26/43
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MICHAEL MURNANE
CARRICKINARE
BALLYBAY
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28 MAY 226
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IN ACCORDANCE WITH
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EPA CODE OF PRACTICE
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WASTEWATER TREATMENT AND DISPOSAL
SYSTEMS SERVING SINGLE HOUSES 2021
Traynor Environmental Ltd
Belturbet Business Park, Creeny, Belturbet
Traynor
Co. Cavan
F.nrinmrmdllnl,
Tel: +353 49 9522236
Fax: +353 49 9522808
Web: www.traynorenvironmental.com
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SITE CHARACTERISATION FORM FOR AN ON -SITE WASTEWATER TREATMENT SYSTEM
CONTENTS
1.0 GENERAL DETAILS
2.0 GENERAL DETAILS
3.0 ON SITE ASSESSMENT
3.1 VISUAL ASSESSMENT
3.2 TRIAL HOLE ASSESSMENT
3.3a Subsurface Percolation Test for Subsoil
Step 1 Test Hole Preparation
Step 2 Pre -Soaking Test Holes
Step 3 Measuring Tioo
Step 4 Standard Method (where Tioo5210min)
Step 5 Modified Method (where T100 > 210min)
3.3bSurface Percolation for Soil
Step 1 Test Hole Preparation
Step 2 Pre -Soaking Test Holes
Step 3 Measuring Tioo
Step 4 Standard Method (where Tioo5 210min)
Step 5 Modified Method (where T100> 210min)
4.0 CONCLUSIONS OF SITE CHARACTERISATION
5.0 RECOMMENDATION
6.0 TREATMENT SYSTEM DESIGN DETAILS
7.0 SITE ASSESSORS DETAILS
8.0 PHOTOGRAPHS OF THE SITE
9.0 EPA/FAS CERTIFICATE
10.0 INSURANCE DETAILS.
2
1 1.0 GENERAL DETAILS (From planning application)
Name(S) Michael Murnane
Address of Correspondance
Site Location and Townland
Carrickinare,
Carrickinare,
Ballybay,
Ballybay,
Co. Monaghan.
Co. Monaghan.
Number of Bedrooms 44 Maximum Number of Residents: 6
Comments on population equivalent
6PE is the maximum capacity of the dwelling
Proposed Water Supply:
Mains: = Private Well/Borehole
2.0 GENERAL DETAILS (From planning application)
Group Well/Borehole
Soil Association 29
Soil Type, (Specify Type):
Acid Brown Earths (75%), Interdrumlin Peat & Peaty Gleys (25%),
Subsoil, (Specify Type): I Sandstone till
Bedrock Type: Late Ordovician -Silurian deep marine greywacke, mudstone (Longford -Down)
Aquifer Category: Regionally Important n Locally Important Poor
Vulnerability: Extreme High ❑ Moderate ❑ Low ❑
Groundwater Body: IE NW G 061 Status Not at Risk
Name of Public/Group Scheme Water Supply within 1km: Local Group Water Scheme
Source Protection ZOC n/a SI n/a SO n/o Groundwater Protection R2'
Area: Response:
Presence of Significant sites
None evident within the locality
(Archaeological, natural and historical):
Variable percolation characteristics of the topsoil and subsoil
materials. Trial holes were excavated on the left hand side of the site
Past experience in the area: from the road but were deemed not suitable. The holes where the
polishing filter is located now were dug and deemed to be the most
suitable location. Rock was encountered in the trial hole.
R21 Acceptable subject to normal good practice. Where domestic water supplies are located Nearby, particular attention
should be given to the depth of subsoil over bedrock such that the minimum depths required in Chapter 6 are met and the
likelihood of microbial pollution Is minimised. Site may be suitable for discharge to ground, if the minimum depths are met
on the site and if there exists suitable percolation. As the soil type in the area is Minimal Grey Brown Podzolics (80% of the
land area), and as the area is mapped as 'Extreme' 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
'This figure of 6 people refers to the potential 6 people maximum that will stay at the proposed dwelling at any one time.
3.0 ON -SITE ASSESSMENT
3.1 Visual Assessment
Landscape Position Slightly sloping
Slope Steep <1:5 Shallow 1.5 to 1.20 ✓ Relatively Flat
Slope Comment I Sloping in South direction
Surface features within a minimum of 250 metres (Distances to features should be noted in metres)
Houses Proposed dwelling located >10m Southeast from the proposed percolation
area (ppa).
Existing Land Uses Agricultural Grassland
Grass is the predominant vegetation throughout the site. Rushes present on
Vegetation Indicators
site intermittent on site.
Groundwater Flow Directions South Direction
Ground Condition Ground conditions are best described as dry and firm through -out the site in
the ppa.
Site Boundaries Hedge located to the West from the ppa.
Proposed garden area to the South & West from the ppa.
Roads R180 which is between Ballybay and Lough Egish is located North from the ppa
Outcrops (Bedrock and/or
Some outcropping rock evident within the locality and on the site.
subsoil)
No surface water ponding evident in the ppa when examined on 13.11.25. It
Surface water ponding
must be noted that weather conditions prior to the site assessment taking
place was generally mild conditions.
Lakes
None occur within 50m of the ppa.
Beaches/Shellfish Areas
None occur within 200m of the ppa.
Wetlands
None occur within 200m of the ppa.
Karst Features
None occur within 200m of the ppa.
Watercourses/Streams None occur within 10m of the ppa.
Drainage Ditches None occur within 10m of the ppa.
Springs
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
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.
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 13.11.2025
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6
3.2 Trial Hole
Should be a minimum 2.10m deep
Depth of Trial Hole
Depth from Ground Surface to
bedrock (m) if Present
1.40m BGL
1.40m
Depth of water ingress 0.90m
Date and Time of I11.11.2025 11.00
Excavation
Depth from Ground Surface to
0.90m
Water Table (m) if Present
Shale
Rock Type if Present
Date and Time of I
13.11.2025 14.00
Examination
Depth of
Subsurface
& Surface
Soil/Subsoil
Texture
Classification
Plasticity
and
Dilatancy
Soil
Structure
Density
Compactness
Colour
Preferential
Flowpaths
0.1m
Depth of
Surface
Test
s
Depth of
Subsurface
Test_
Silt/Clay
Ribbons
30.40.40
2,2,2Threads
Crumb
Medium
Brown
Brown
--
GWI
Silt/Clay
---
GWT
BEDROCK
0.2m
0.3m
0.4m
Clay intermixed
With stone
GWT
Ribbons
30.30.30
1,1,2Threads
GWT
Crumb
GWT
Medium
F
GWT
0.5m
0.6m
0.7m
0.8m
0.9m
1.Om
1.1m
1.2m
1.3m
1.4m
1.5m
BEDROCK
BEDROCK
BEDROCK
BEDROCK
BEDROCK
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 BS5930:1999, the subsoil is best described as Clay
intermixed with stone
Groundwater was encountered in the trial hole at 0.90m BGL. Bedrock was encountered in the trial hole at
1.40m BGL.
Likely Surface Percolation <30.00
Value: min /25mm
7
3.3a Subsurface Percolation Test for Subsoil
Step 1 Test Hole Preparation
Percolation Test Hole
1
2
3
150
Depth from ground surface
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)]:
300300
300x300
300x300
Step 2 Pre -Soaking Test Holes
Pre-soak Date 12.11.2025
start Time 15,00
2"d pre-soak Date 12.11.2025
start Time 17.20
12.11.2025 12.11.2025
15.01 15.02
12.11.2025 12.11.2025
17.21 17.23
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
13.11.2025
13.11.2025
13.11.2025
Time Filled to 400mm
14.00
14.02
14.02
Time Water Level at
300mm 14.33 14.43 14.37
Time to drop 100mm (Tioo) 33.00 41.00 35.00
Average Tioo 36.33
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
Step 4 Standar
Percolation
Test Hole
Fill No.
2
3
Average At
1 Method (where Tioo≤ 210min)
1
Start Finish at
Time at Time at
300mm 200mm (min)
14.34 15.11 37.00
15.12 15.52 40.00
15.53 16.35 42.00
39.67
Start
Time at
300mm
14.44
15.30
16.20
2
Finish Iat
Time at
200mm (min)
15.29 45.00
16.19 49,00
17.12 52.00
48.67
3
Start Finish
Time at Time at At (min)
300mm 200mm
14.38 15.15 37.00
15.16 15.56 40.00
15.57 16.41 44.00
40.33
Average At/4 = Average At/4 = Average &t/4 =
9.91 12.17 10.08
[Hole No. 1] [Hole No. 2] [Hole No. 2]
Result of Test: Subsurface
Percolation Value:
Comments
10.72 1 min/25mm
Result of Test: Subsurface Percolation Value = 10.72min/25mm.
Excellent Percolation Characteristics of the Subsoil Material.
3.3bSurface Percolation for Soil
Step 1 Test Hole Preparation
LPercolation 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
300 x 300
300 x 300
300 x 300
breadth (mm)]:
Step 2 Pre -Soaking Test Holes
Pre-soak Date 12.11.2025
start Time 15.05
2nd pre-soak Date 12,11.2025
start Time 17.25
12.11.2025 12.11.2025
15.06 15.08
12.11.2025 12.11.2025
17.26 17.29
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
13.11.2025
13.11.2025
13.11.2025
Time Filled to 400mm
14.04
14.06
14.08
Time Water Level at
14.55
15.05
14.56
300m m
Time to drop 100mm
(Tioo)
51.00
59.00
48.00
Average Tioo
52.67
IfTioo>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
10
Step 4 Standard Method (where Tioo5 210min)
Percolation
Test Hole
Fill No.
Average Ot
1
Start
I Finish
Time at
Time at
IAt
(min)
300mm
200mm
2 3
Start Finish At Start Finish
Time at Time at Time at Time at At (min)
300mm 200mm (min) 300mm 200mm
14.55 15.50 55.00 15.05 16.88 63.00 14.57 15.49 52.00
15.51 16.53 62.00 16.09 17.16 67.00 15.50 16.48 58.00
16.54 18.01 67.00 17.17 18.32 75.00 16.49 17.55 66.00
61.34
68.33
58.66
Average At/4 = Average At/4 = Average At/4 =
15.33 17.08 14.66
[Hole No. 1] [Hole No. 21 [Hole No. 2]
Result of Test : Surface Percolation
15.72 min/25mm
Value
I Result of Test: surface Percolation Value = 15.69 min/25mm.
Comments
I Good Percolation Characteristics of the Topsoil Material.
11
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 1.200
Are all minimum separation distance met? Yes
Depth of unsaturated soil and/or subsoil beneath invert of gravel 0,90m
(or drip tubing in the case of drip dispersal system)
Percolation test results: Surface: 15.69 min/25mm Sub -surface: 10.72 min/25mm
Not suitable for Development Suitable for Development �✓
Identify all suitable options Discharge Route
1. Septic tank System (Septic tank and percolation area) Groundwater
(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 an O'Reilly Oakstown EN Treatment system or
Propose to install similar EN Certified System, Ecoflo Coco Filter and gravel distribution layer is
constructed in accordance with EPA guidelines 2021.
And discharge to Groundwater
Invert level of the trench/bed 0.30m Above Ground Level (AGL)
gravel or drip tubing (m)
I 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 10.72 min/25mm indicating excellent percolation
characteristics of the Sub -surface. A surface value rating of 15.69 min/25mm was attained indicating good
percolation characteristics of the surface. Groundwater was encountered in the trial hole at 0.90m BGL. Bedrock
was encountered in the trial hole at 1.40m BGL.
An Ecoflo Co Co 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 Gravel Distribution Bed and Groundwater at all times. The
Ecoflo Co Co Filter will be bedded on 300mm depth of crushed stone (20-30mm in sizes).
Traynor Environmental Ltd also recommends that the O' Reilly Oakstown Treatment System, Coco filter and
polishing filter construction is overseen by a suitable qualified and accredited person.
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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) I
Package Treatment Systems
Media Type
Area (m2)
Deep of Filter
Invert Level
receiving raw wastewater
(m)
(m)
(Chapter 9)
Sand/Soil
N/A
N/A
N/A
O'Reilly Oakstown
Type
Treatment System
Soil
N/A
N/A
N/A
Capacity PE 8
Constructed
N/A
N/A
N/A
Sizing of Primary Compartment
Wetland
Other
N/A
N/A
N/A
4 m2
Polishing Filter: (Section 10.1)
Surface Area Sand Filter (m2)
Ecoflo
No. of Trenches
Coco Filter
Option 1 — Direct Discharge Surface area (m2) I 45 I Length of Trenches (m)
Option 2 — Pumped Discharge Surface Area (m2)
N/A I Invert Level (m)
SYSTEM TYPE: O'Reilly Oakstown Treatment System and infiltration/ treatment area (section 10.2)
N/A
N/A
fi 9100T7[elt
Provide performance information
Identify purpose of tertiary treatment demonstrating system will provide Provide design information
required treatment levels
O'Reilly Ookstown Treatment
System, Ecoflo Coco Filter & Gravel
Distribution Bed
DISCHARGE ROUTE:
Groundwater �✓ Hydraulic Loading Rate (I/m2. d) 900 Surface Area (m2)
Surface Water Discharge Rate (m3/hr) 0.011
QUALITY ASSURANCE:
Installation & Commissioning On -going Maintenance
Recommend to be overseen by plant supplier. Maintain and de -sludge annually
13
7.0 SITE ASSESSOR DETAILS
Company: Traynor Environmental Ltd
Prefix: Mr. First Name: Nevin Surname: Traynor
Address:
Belturbet Business Park,
Creeny,
Belturbet,
Co. Cavan.
Qualifications/Experience: BSc. Env, H. Dip I. T, Cert SHWW, EPA/FAS Course Certified
Professional Indemnity Insurance Holder (Cl million cover)
Date of Report: 19.11.2025
Phone: 0499522236 Fax: 0499522808 E-mail: nevin@traynorenvironmental.com
Indemnity Insurance Number: 24/1/03161 (Renewed 12`1'July 2025)
Signed:
Nevin Traynor
BSc. Env, H.Dip I. T, Cert SHWW, EPA/FAS Cert.
For Traynor Environmental Ltd
14
Figure — Ecoflo Co co Filter Detail
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Cross Section
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8.0 SITE PHOTOGRAPHS
Facing North From the
Facing South From the
Proposed Percolation Area
Proposed Percolation Area
Facing East From the
Facing West From the
Proposed Percolation Area
Proposed Percolation Area
LI&si j
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Trial Hole - Side View
Trial Hole - Front View
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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
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From the GSI Vulnerability
Map Site is classified as
Extreme
Bedrock Map
From the GSI Bedrock Map
Site is classified Late
Ordovician -Silurian deep
marine greywacke,
mudstone (Longford -Down)
Teagasc Subsoil Map
1C1
From the Teagasc Subsoil
Map Site is classified as
Sandstone till
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10.0 P.1 INSURANCE
Grltn ne & Armour Europe DAC
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PROFESSIONAL INDEMNITY INSURANCE
Griffiths
Armour
M Aon Company
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
H 14AY94
Lead Insurer(s):
Arch Insurance (EU) dac and a panel of co-insurers
Period of Insurance:
12 July 2025 to II July 2026
Policy Number:
24/1103151
Limit of Indemnity:
€1,500,000 any one claim and unlimited in the period of insurance
signed:
Graeme Tinney
Chief Executive Officer
Griffiths & Armour Europe DAC
Date: 27 June 2025
The polcy is sub ect to the insuring agreements, exceptions, exclusions, limitations, conditions and deotarations contained
therein The above is accurate at the date of sgnature. No obligation is imposed herein on the signatory to advise of any
alleraton.
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PROPOSAL
FOR
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O'REILLY OAKSTOWN TREATMENT SYSTEM
PREPARED
FOR
MICHAEL MURNANE
CARRICKINARE
BALLYBAY
CO. MONAGHAN
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Date: 1 91h November 2025
Applicant Name: Michael Murnane
Site Address: Carrickinare, Ballybay, 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
BOD5
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 -12566-3 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: 10.72 min/25mm as per Site Characterisation Form.
Surface value: 15.69 min/25mm as per Site Characterisation Form.
Depth from ground surface to water table: 0.90m BGL
Depth from ground surface to winter groundwater level: 0.90m BGL
Depth from ground surface to bed rock: 1.40m BGL.
►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
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 - PrOfinstitut fir Abwassertechnik GmbH
(PIA GmbH)
Hergenrather Weg 30
D-52074 Aachen
Certified according to
ISO 9001:2000
Notified Body number 1739
a rnritn��ir; �ar't�G: -a. n�
0.38
kg/d
1.20
m3/d
steel reinforced concrete
pass
pass
Efficiency Effluent
COD
93.0 % 46 mg/I
BODS
97.5 % 8 mg/l
NH4-N
61.0% 13 mg/I
SS
96.7% 12mg/I
2.0
kWh/d
Ah:laSSF�rn
-n
Ehna, Ian,:'= 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. 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(31
Adjacent dwelling
7(l)
10(31
Wall
311)
3
Road
41')
4
Site boundary
3(1)
3
Portable water source
10
30- 100121
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.
Sri Ensure there are no power lines or other hazards above the excavation site.
We recommend an inspection chamber (AJ) be fitted just before the BAF Unit.
Digging Instructions
Generally the Oakstown BAF 2 -Tank System is installed side by side as follows: The nia(ir,1tn 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
915mm Chamber 2400w-
3'0" AJ 8,-0„
secondary I
E
primary
; treatment
of
tank
I tank
o'
IH_I
__
Two Tank BAF Unit
300mm
as shown from above
------------------11-0")
'
------------
Oakstown, Trim
Telephone: 046 - 943 - 1389
E-mail: info@oreillyoakstown.com
Co. Meath
Fax: 046 - 943 - 7054
Web: www.oreillyoakstown.com
INSTRUCTIONS
-------------------
BAF System
The second tank sits 150mm (6inch)
lower as shown in
® E,
E:
Two Tank BAF unit
as shown side by side
150rrn
Q 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.
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.
From Dwelling
110mm Piping
Inspection
Chamber 32mt
AJ
' •....................
...................
❑
secondary
primary lank:
treatment
tank
25 - 40mm Screening
c�r y
Distribution Box
idrodare o Trench
N y
minimum o 100mm Percolation Pipe
N L
Fall of 1:200 In Percolation Pipe
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
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 OPE WTS :: 11114
Oakstown, Trim Telephone: 046 - 943 - 1389 E-mail: info@oreillyoakstown.com
Co. Meath Fax: 046 - 943 - 7054 Web: www.oreillyoakstown.com
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A reliable wastewater treatment system well adapted to all site
conditions. Proven performances surpassing the strictest standards.
A permanent and ecological solution — no energy needed for the
treatment. Pre -assembled, easy -to -handle units to ensure quality
installations and less surplus material transported to sites.
Minimal final footprint — ideal when the available area for the
installation is limited or if separation distances must be reduced.
Delivered ready to be installed to minimize civil works and eliminate
construction on site. No excavation or relocation at the end of the
life cycle of the filtering media (up to 15 years).
O'REIT,T,y Complies with the EPA C E
�i—OAKSTOWN- CodeofPractice2009
PROTECT
YOUR PROPERTY,
YOUR ENVIRONMENT
& YOUR INVESTMENT.
it 1i\�
kiiiiiiJ
,_000-rte
Ecoflo Coco Filter offers all the benefits of a truly proven and reliable
tertiary treatment system. Designed for both principal and secondary
residences as well as for new housing constructions and faulty system
replacement projects. Also recommended for commercial projects.
O'REILLY
�i—OAKSTOWN—
Send us a copy of your EPA Site Suitability Assessment and we will produce a
design for you.
If you don't have a copy, send us your planning number and we'll look it up for
you on your local authority website.
Send us the name of your engineer and we will liaise with them for you.
We supply either a full kit of a Wastewater Treatment or only the Ecoflo
Coco Filter — Tertiary Treatment Filter along with 15 m of interconnecting
pipework and fittings.
We will liaise with your grounds contractor to ensure proper installation.
We provide a commissioning certificate for the system for full compliance
with your planning.
111111-
1� _'I1'�fl
000
Pumping Station
Treats domestic wastewater as per local regulations.
Ecoflo Coco Filter
Provides a final treatment stage to further improve
the effluent quality before it is discharged to the receiving
environment. Spreads out the influent over the surface
of the filtering media thanks to a patented distribution
system comprised of a feed ramp, a tipping bucket and
distribution plates.
The coco fragment -based filtering media is where the
water is organically further treated and filtered and where
pollutants are retained and degraded.
anal Discharge.
The treated wastewater is discharged directly to a gravel
distribution bed installed below it.
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