The URL can be used to link to this page

Home My WebLink About2660193 - F.I. Received Doc. - Site assessment report 1 SOIL CHARACTERISATION AND SITE SUITABILITY ASSESSMENT REPORT TE REF: 26/ 486 TE MICHAEL CARROLL & ANNETTE CLARKE RAFERAGH SHERCOCK CO. MONAGHAN A81 A298 IN ACCORDANCE WITH EPA CODE OF PRACTICE WASTEWATER TREATMENT AND DISPOSAL SYSTEMS SERVING SINGLE HOUSES 2021 Traynor Environmental Ltd Belturbet Business Park, Creeny, Belturbet Co. Cavan Tel: +353 49 9522236 Fax: +353 49 9522808 Web: www.traynorenvironmental.com RECEIVED: 03/09/2026 2 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 T100 Step 4 Standard Method (where T100 ≤ 210min) 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 T100 Step 4 Standard Method (where T100 ≤ 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. RECEIVED: 03/09/2026 3 1.0 GENERAL DETAILS (From planning application) Name(S) Michael Carroll & Annetee Clarke Address of Correspondance Site Location and Townland C/O Shalvey Architectural & Planning Consultants, Cornanumey, Coothill, Co. Cavan H16 KI68 Raferagh, Shercock, Co. Monaghan Number of Bedrooms 3 Maximum Number of Residents: 5 Comments on population equivalent 5 PE 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 (75%), Interdrumlin Peat & Peaty Gleys(25%) Subsoil, (Specify Type): Limestone tillSandstone and shale till (Lower Palaeozoic) Bedrock Type: Silurian Metasediments and Volcanics Aquifer Category: Regionally Important 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: Magheracloone GWS Source Protection Area: ZOC n/a SI n/a SO n/a Groundwater Protection Response: R1 Presence of Significant sites (Archaeological, natural and historical): None evident within the locality Past experience in the area: Variable percolation characteristics of the topsoil and subsoil materials. R1 = Acceptable subject to normal good practice. 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 Acid Brown Earths (75% of the land area), and as the area is mapped as ‘Low’ 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 minimu m 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 minimu m depths required are met on the site, if the minimum separation distances can be met, and if the percolation rate is adequate. ____________________________________________________________________________________ 1This figure of 5 people refers to the potential 5 people maximum that will stay at the proposed dwelling at any one time. RECEIVED: 03/09/2026 4 3.0 ON-SITE ASSESSMENT 3.1 Visual Assessment Landscape Position Shallow Slope Steep <1:5 Shallow 1.5 to 1.20  Relatively Flat Slope Comment Sloping in South direction Surface features within a minimum of 250 metres (Distances to features should be noted in metres) Houses Existing house located >10m North from the proposed percolation area (ppa) and is serviced by a conventional tank which requires to be upgraded . Neighbouring house located >100m East & 120m North from the ppa. Existing Land Uses Agricultural Grassland Vegetation Indicators Grass is the predominant vegetation throughout the site. Groundwater Flow Directions South Direction Ground Condition Ground conditions are best described as dry and firm throught -out the site in the ppa. Site Boundaries Hedge located to the South & East from the ppa. Roads Located road located >50m south from the ppa. Outcrops (Bedrock and/or subsoil) Some outcropping rock evident within the locality. Surface water ponding No surface water ponding evident in the ppa when examined on 13.08.26. It must be noted that weather conditions prior to the site assessment taking place was generally dry 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 Water to be supplied via Magheracloone GWS however 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 (20 21). 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 RECEIVED: 03/09/2026 5 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. Existing Tank to be Decommissioned and Upgraded RECEIVED: 03/09/2026 6 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. N orth point should always be included. SITE LAYOUT DRAWING SHOWING TEST HOLE LOCATIONS Groundwater Flow Direction Approximate Location of Trial Hole & Percolation Test Holes Examined on 13.08.2026 .19 RECEIVED: 03/09/2026 7 3.2 Trial Hole Should be a minimum 2.10m deep Depth of Trial Hole 2.50m BGL Depth from Ground Surface to bedrock (m) if Present None Encountered Depth from Ground Surface to Water Table (m) if Present None Encountered Depth of water ingress None Encountered Rock Type if Present None Encountered Date and Time of Excavation 11.08.2026 10.00 Date and Time of Examination 13.06.2026 12.00 Depth of Subsurface & Surface Soil/Subsoil Texture Classification Plasticity and Dilatancy Soil Structure Density Compactness Colour Preferential Flowpaths 0.1m Depth of Silt/Clay Ribbons Crumb Low Brown Silt/Clay 0.2m Surface 30.30.40 0.3m Test 2,2,2Threads 0.4m 0.5m Depth of Clay intermixed Ribbons Crumb Low Brown 0.6m Subsurface Test With stone 40.40.50 0.7m 2,3,3Threads 0.8m 0.9m 1.0m 1.1m 1.2m 1.3m 1.4m 1.5m 1.6m 1.7m 1.8m 1.9m 2.0m 2.1m 2.2m 2.3m 2.4m 2.5m 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/ Winter groundwater was not encountered in the trial hole. Bedrock was not encountered in the trial hole. Likely Subsurface Percolation Value: <40.00 min /25mm *Note: Depth of percolation test holes should be indicated on log above (Enter Subsurface & Surface Depths as appropriate) * See Appendix E for BS5930 Classification Likely Surface Percolation Value: <40.00 min /25mm RECEIVED: 03/09/2026 8 3.3a Subsurface Percolation Test for Subsoil Step 1 Test Hole Preparation Percolation Test Hole 1 2 3 Depth from ground surface to top of hole (mm) (A): 400 150 150 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 300 300 x 300 300 x 300 Step 2 Pre-Soaking Test Holes Pre-soak start Date 12.08.2026 12.08.2026 12.08.2026 Time 12.40 12.41 12.42 2nd pre-soak start Date 12.08.2026 12.08.2026 12.08.2026 Time 16.50 16.51 16.52 Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before refilling. Step 3 Measuring T100 Percolation Test Hole 1 2 3 Date of Test 13.08.2026 13.08.2026 13.08.2026 Time Filled to 400mm 12.00 12.01 12.03 Time Water Level at 300mm 13.16 13.24 13.16 Time to drop 100mm (T100) 76.00 83.00 73.00 Average T100 77.33 If T100 >480mins then Subsurface Percolation value >120 – site unsuitable for discharge to ground If T100 ≤ 210mins then go to Step 4 If T100 ≥ 210mins then go to Step 5 RECEIVED: 03/09/2026 9 Step 4 Standard Method (where T100 ≤ 210min) Percolation Test Hole 1 2 3 Fill No. Start Time at 300mm Finish Time at 200mm ∆t (min) Start Time at 300mm Finish Time at 200mm ∆t (min) Start Time at 300mm Finish Time at 200mm ∆t (min) 1 13.17 14.37 80.00 13.25 14.51 86.00 13.17 14.32 75.00 2 14.38 16.02 84.00 14.52 16.20 88.00 14.33 15.51 78.00 3 16.03 17.32 89.00 16.21 17.53 92.00 15.52 17.16 84.00 Average ∆t 84.33 88.67 79.00 Average ∆t/4 = [Hole No. 1] 21.08 Average ∆t/4 = [Hole No. 2] 22.17 Average ∆t/4 = [Hole No. 2] 19.75 Result of Test: Subsurface Percolation Value: 21.00 min/25mm Result of Test: Subsurface Percolation Value = 21.00min/25mm. Comments Good Percolation Characteristics of the Subsoil Material. RECEIVED: 03/09/2026 10 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 x 300 300 x 300 300 x 300 Step 2 Pre-Soaking Test Holes Pre-soak start Date 12.08.2026 12.08.2026 12.08.2026 Time 12.43 12.45 12.47 2nd pre-soak start Date 12.08.2026 12.08.2026 12.08.2026 Time 16.54 16.55 16.56 Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before refilling. Step 3 Measuring T100 Percolation Test Hole 1 2 3 Date of Test 13.08.2026 13.08.2026 13.08.2026 Time Filled to 400mm 12.05 12.06 12.07 Time Water Level at 300mm 12.55 12.50 12.55 Time to drop 100mm (T100) 50.00 44.00 48.00 Average T100 47.33 If T100 >480 minutes then Surface Percolation value >90 – site unsuitable for discharge to ground If T100 ≤ 210mins then go to Step 4 If T100 ≥ 210mins then go to Step 5 RECEIVED: 03/09/2026 11 Step 4 Standard Method (where T100 ≤ 210min) Percolation Test Hole 1 2 3 Fill No. Start Time at 300mm Finish Time at 200mm ∆t (min) Start Time at 300mm Finish Time at 200mm ∆t (min) Start Time at 300mm Finish Time at 200mm ∆t (min) 1 12.56 13.48 52.00 12.51 13.38 47.00 12.56 13.47 51.00 2 13.49 14.44 55.00 13.39 14.28 49.00 13.48 14.43 55.00 3 14.45 15.41 56.00 14.29 15.23 54.00 14.44 15.41 57.00 Average ∆t 54.33 50.00 54.33 Average ∆t/4 = [Hole No. 1] 13.58 Average ∆t/4 = [Hole No. 2] 12.50 Average ∆t/4 = [Hole No. 2] 13.58 Result of Test : Surface Percolation Value 13.22 min/25mm Result of Test: Surface Percolation Value = 13.22 min/25mm. Comments Excellent Percolation Characteristics of the Topsoil Material. RECEIVED: 03/09/2026 12 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 (or drip tubing in the case of drip dispersal system) 0.90m Percolation test results: Surface: 13.22 min/25mm Sub-surface: 21.00 min/25mm Not suitable for Development Suitable for Development  Identify all suitable options Discharge Route 1. Septic tank System (Septic tank and percolation area) (Chapter 7)  Groundwater 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: Propose to install Traynor Environmental recommends the installation of an O’Reilly Oakstown EN - certified wastewater treatment system, or equivalent approved EN-certified system, together with a soil polishing filter constructed in accordance with the EPA Code of Practice 2021. And discharge to Groundwater Invert level of the trench/bed gravel or drip tubing (m) 0.20m Below Ground Level (BGL) Site Specific Conditions (if any) e.g. special works, Site Improvement Works, Testing etc. The tests showed that the site has a sub-surface percolation value of 21.00 min/25 mm, indicating good percolation characteristics within the subsoil. A surface percolation value of 13.22 min/25 mm was attained, indicating excellent percolation characteristics within the surface soils. Groundwater, including winter groundwater, was not encountered within the trial hole during the site assessment. Bedrock was also not encountered within the trial hole. Traynor Environmental Ltd recommends the installation of an O’Reilly Oakstown EN-certified wastewater treatment system, or similar EN-certified treatment system, together with a soil polishing filter constructed in accordance with the EPA Code of Practice (2021). The treatment system and polishing filter shall be appropriately sized and installed having regard to the site-specific conditions and the design population equivalent. Traynor Environmental Ltd also recommends that the installation of the wastewater treatment system and construction of the soil polishing filter be overseen and certified by a suitably qualified and competent person to ensure that the works are completed in accordance with the approved design, manufacturer’s requirements and the EPA Code of Practice (2021). RECEIVED: 03/09/2026 13 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 Media Type Area (m2) Deep of Filter (m) Invert Level (m) receiving raw wastewater (Chapter 9) Sand/Soil N/A N/A N/A Type O’ Reilly Oakstown Treatment System Soil 10 No. 10m Trenches 300mm 0.2m BGL Capacity PE 6 Constructed Wetland N/A N/A N/A Sizing of Primary Compartment Other N/A N/A N/A 2.40 m2 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) 0.20m BGL SYSTEM TYPE: O’Reilly Oakstown Treatment System and infiltration/ treatment area (section 10.2) Identify purpose of tertiary treatment Provide performance information demonstrating system will provide required treatment levels Provide design information N/A O’Reilly Oakstown Treatment and soil polishing filter As per Table 10.1 of EPA Code of Practice 2021 DISCHARGE ROUTE: Groundwater  Hydraulic Loading Rate (l/m2. d) 750 Surface Area (m2) 40 Surface Water Discharge Rate (m3/hr) 0.009 QUALITY ASSURANCE: Installation & Commissioning On-going Maintenance Recommend to be overseen by plant supplier. Maintain and de-sludge annually RECEIVED: 03/09/2026 14 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 (€1 million cover) Date of Report: 14.08.2026 Phone: 049 9522236 Fax: 049 9522808 E-mail: nevin@traynorenvironmental.com Indemnity Insurance Number: 24/1/03161 (Renewed 12th July 2025) Signed: Nevin Traynor BSc. Env, H.Dip I.T, Cert SHWW, EPA/FAS Cert. For Traynor Environmental Ltd RECEIVED: 03/09/2026 15 8.0 SITE PHOTOGRAPHS Facing North From the Proposed Percolation Area Facing South From the Proposed Percolation Area Facing East From the Proposed Percolation Area Facing West From the Proposed Percolation Area Trial Hole – Front View Trial Hole – Side View RECEIVED: 03/09/2026 16 Percolation (“T”) Test 1 Percolation (“T”) Test 2 Percolation (“T”) Test 3 Percolation (“P”) Test 1 Percolation (“P”) Test 2 Percolation (“P”) Test 3 RECEIVED: 03/09/2026 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 Low RECEIVED: 03/09/2026 18 Bedrock Map From the GSI Bedrock Map Site is classified Silurian Metasediments and Volcanics Teagasc Subsoil Map From the Teagasc Subsoil Map Site is classified as Sandstone and shale till (Lower Palaeozoic) RECEIVED: 03/09/2026 19 9.0 EPA/FAS CERTIFICATE RECEIVED: 03/09/2026 20 10.0 P.I INSURANCE RECEIVED: 03/09/2026 21 PROPOSAL FOR A O’REILLY OAKSTOWN TREATMENT SYSTEM PREPARED FOR MICHAEL CARROLL & ANNETTE CLARKE RAFERAGH SHERCOCK CO. MONAGHAN A81 A298 RECEIVED: 03/09/2026 TRAYNOR ENVIRONMENTAL LTD EPA SEWAGE LOADING SIZING CHART - MICHAEL CARROLL & ANNETTE CLARKE Situation Source Litres/day BOD5 g/d PE Organic Number of Population Hydraulic Organic Pupulation Person Person Loading Persons (Organic)Loading (Lit)Loading (gr)(Hydraulic) Domestic Normal Resident 150 60 1.00 5 5 750 300 5.00 Industrial Office and/or factory without canteen 30 20 0.33 0 0 0 0.00 Office and/or factory 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 clubs 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 5 750 300 5.00 Loadings Population Org 5.00PE Hydraulically 5.00PE Treatment System Proposed: O' Reilly Oakstown Treatment System & Soil Polishing Filter RECEIVED: 03/09/2026 Date: 14th August 2026 Applicant Name: Michael Carroll & Annette Clarke Site Address: Raferagh, Shercock,Co. Monaghan Design Capacity: Maximum number of residents: 05 No. of single bedrooms: 00 No. of double bedrooms: 03 A representative of O’Reilly Oakstown Ltd has assessed the Soil Test Report and confirms the suitability of their Oakstown BAF 6 PE 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 No. of users Flow Litres/day/person Total Hydraulic Load B0D5 (grams/day/person) Total Organic Loading (grams/day) 5 150 750 litres 60 300 Total Organic Loading 0.30kg BOD/day Total Hydraulic loading 0.75m³ /day - Average treated effluent standard - see performance results on EN-12566-3 certification attached BOD 8mg/litre TSS 12mg/litre Ammonia 13mg/litre - Proposed system details: ► Oakstown BAF 6 P.E. Volume of Total Plant 6.73m³ Volume of Primary Sedimentation Chambers 2.40m³ Volume of Secondary Aeration Chamber 1.20m³ Volume of Biomedia 0.80m³ RECEIVED: 03/09/2026 2. Wastewater Treatment system description: The Oakstown BAF 6 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 (2.40m³) 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: 13.22 min/25mm as per Site Characterisation Form. Surface value: 21.00 min/25mm as per Site Characterisation Form. Depth from ground surface to water table: None Encountered Depth from ground surface to winter groundwater level: None Encountered 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: RECEIVED: 03/09/2026 • 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, RECEIVED: 03/09/2026 RECEIVED: 03/09/2026 BAF-Site-Instructions-6PE-System[rev.2] .pdf 1 31/01/2017 14:23 RECEIVED: 03/09/2026 BAF-Site-Instructions-6PE-System[rev.2] .pdf 2 31/01/2017 14:23 RECEIVED: 03/09/2026 2780 1910 800 1000 110 BIOREACTORCLARIFIERPUMP STATION AIRCOMPRESSORCALPEDA GXR-9 AIR LIFT PUMPSLUDGE RETURN600 x 900 ACESS COVER 600 x 900 ACESS COVER 2490 1800 60° 6 0 ° 100 250 SECTION A-A CL INLET DN110 PUMPSTATION CLARIFIER BIOREACTOR TREATEDWATER OUTLET BIOMEDIA100m2/m3 AIR DIFFUSER NORRES PRO AIR PRE PUR 601 AIRCOMPRESSOR AIR LIFT PUMPSLUDGE RETURN 1500 2150 SECTION B-B PRIMARY 1 PRIMARY 2 PRIMARY 1 PRIMARY 2 Oakstown 6PE BAF SYSTEM Sectional Elevation          I.S. EN ISO 9002          RECEIVED: 03/09/2026