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HomeMy WebLinkAbout2667 - Site Assessment ReportSoil Characterisation & Site Suitability Assessment Report FOR Keith Pringle PLANNING DE PA RTMENT REF. NO. 26/67 MONAGHAN CO. COUNCIL Rateerbane & Radeerpark Tds., Clones, Co. Monaghan MON. CO. CO. PLANNING SECTION 23 JUL 2026 REG. NO SITE CHARACTERISATION FORM COMPLETING THE FORM Note: This form requires the latest version of Adobe Acrobat Reader and on PC's Windows 7 or later. Windows XP produces errors in calculations Step 1: Go to Menu Item File, Save As and save the file under a reference relating to the client or the planning application reference if available. Use the Clear Form button to clear all information fields Notes All calculations in this form are automatic. Where possible information is presented in the form of drop -down selection lists to eliminate potential errors. Variable elements are recorded by tick boxes. In all cases only one tick box should be activated. All time record fields must be entered in twenty -four-hour format as follows: HH:MM All date formats are DD-MM-YYYY. All other data fields are in text entry format This form can be printed out fully populated for submission with related documents and for your files. It can also be submitted by email. Section 3.2 In this section use an underline across all six columns to indicate the depth at which changes in classification / characteristics occur. Section 3.4 Lists supporting documentation required. Section 4 Select the treatment systems suitable for this site and the discharge route. Section 5 Indicate the system type that it is proposed to install. Section 6 Provide details, as required, on the proposed treatment system. APPENDIX A: SITE CHARACTERISATION FORM File Reference: N / A Prefix: Mr First Name: Keith Surname:Pringle 1 Address: Site Location and Townland: Rateerbane & Radeerpark Tds., Clones Rateerbane & Radeerpark Tds., Clones Number of Bedrooms: 44 Maximum Number of Residents: 6 Comments on population equival PLANNING DEPARTMENT Max no. of residents 6 PLANNING SECTION 13 J u L 2026 26/67 Proposed Water Supply: REG. NO Well M Mains ❑ Private o e 0NEq)�f,QPIJI ICIL Soil Type, (Specify Type): TLP SsS Sandstone & Shale (Lower Paleozoic) Mid Upper Ordovian Slate Sandstone, greywacke conglomorate Bedrock Type: Aquifer Category: PI Regionally Important Locally Important Poor Vulnerability: Extreme ❑ High ❑ Moderate Low ❑ Groundwater Body: Good Status Unknown Name of Public/Group Scheme Water Supply within 1 km: None Source Protection Area: ZOC ❑ SI SO ❑ Groundwater Protection Response: R2/1 Presence of Significant Sites (Archaeological, Natural & Historical): None Noted Past experience in the area: Previous tests in this area have passed Comments: (Integrate the information above In order to comment on: the potential suitability of the site, potential targets at risk, and/or any potential site restrictions R2 / 1 —Acceptable subject to normal good practice. Site may be suitable for discharge to the ground if the minimum depths are met on the site and percolation rates are good. Soil type in the area are generally acid brown earths (Min 75%) and stated as locally important, Groundwater will be most at risk. Separation from any shallow or deep wells in the vicinity will have to be maintained. From initial desktop study, a conventional septic tank and sub soil percolation area may be acceptable if the percolation rates and other site results are acceptable. Note: Only information available at the desk study stage should be used in this section 3.1 Visual Assessment Landscape Position: Elevated Slope: Steep (>1:5) ❑ Shallow (1.5-1.20) Relatively Flat (<1:20) ❑ Surface Features within a minimum of 250m (Distance To Features Should Be Noted to Metres) Houses: Closed dwelling is over 25.0m North Of PPA Land Use: Agriculture Vegetation Indicators: Site is well grazed Groundwater Flow Direction: North Ground Condition: Ground conditions are firm and dry throughout the site Andaries: All mature boundaries on site 3.1 Visual Assessment (contd.) LT road to Northern Site boundary over 10.0m from PPA Outcrops (Bedrock And / Or Subsoil): None Noted Surface Water Ponding: Noted .akes: None Noted Beaches/Shellfish Areas: None in close proximity of PPA Wetlands: None Noted Karst Features: None Noted Watercourses/Streams: None Noted Drainage Ditches:* As Above Springs:` Proposed deep bore well for this site. All other wells in the vicinity meet the required separation distances aet out in the Groundwater Protection response of GSI / EPA / DoELG and the EPA Code Of Practice 2021, None are therefore deemed at risk from this proposed development Wells:* None noted Comments: (Integrate the information above in order to comment on: the potential suitability of the site, potential targets at risk, the suitability of the site to treat the wastewater and the location of the proposed system within the site). The site is generous and will meet all the required separation distances should the physical site test results be deemed favourable *Note and record water level 3.2 Trial Hole (should be a minimum of 2.1 m deep (3m for regionally important aquifers)) To avoid any accidental damage, a trial hole assessment or percolation tests should not be undertaken in areas which are at or adjacent to significant sites, (e.g. NHAs, SACs, SPAs, and / or Archaeological etc.), without prior advice from National Parks and Wildlife Service or the Heritage Service. Depth of trails hole (m): 2.1m Depth from ground surface I I Depth from ground surface to to bedrock (m) (if present) None Encountered water table (m) (if present): Not Encountered Depth of water ingress: None Noted Rock type (if present): N / A Date and time of excavation: 18.02.2026 3:00 Date & Time Of Examination: 21.02.2026 8.30am Depth of Surface and Subsurface Soil/Subsoil Percolation Texture & Plasticity and Soil Density/ Preferential Tests Classification dilatancy*** Structure Compactness Colour**** flowpaths 0.1 m 0.2 m 0.3 m 0.4m 0.5 m 0.6 m 0.7m 0,8 m 0.9m 1.0m 1.1 m 1.2 m 1.3 rn 1.4m 1.5 rn 1.6m 1.7 m 1.8m 1.9 m 2.0m 2.1 m 2.2 m 2.3 m 2.4 m 2.5 m 2.6m 2.7 m 2.8 m 2.9 m 3.0 m 3.1 m 3.2m 3.3 m 3.4 m 3.5 m Loose & Un compacted Water @ 1.9m bgl Base Of Trial Hole 2.1 m BGL Loose Ribbons 65, 60,60 4,4,4 Loose Threads / gravel Medium Uncompact Brown Yes Light Yes — Cobbles / brown silt Likely Subsurface Percolation Value: < 25 Likely Surface Percolation Value: Min / 25 Note: *Depth of percolation test holes should be indicated on log above. ('Enter Surface or Subsurface at depths as appropriate). ** See Appendix E for BS 5930 classification *** 3 samples to be tested for each horizon and results should be entered above for each horizon ***' All sings of mottling should be recorded. 3.2 Trial Hole (contd.) Evaluation: Trial hole was dry on inspection and no rock was encountered. Excavated material was loose and uncompacted. 3.3(a) Subsurface Percolation Test for Subsoil Step 1: Test Hole Preparation ,I j Percolation Test Hole 1 1� Depth from ground surface 150 150 150 to top of hole (mm) (A) Depth from ground surface 550 550 550 to base of hole (mm) (B) 400 400 400 Depth of hole (mm) (B -A) Dimensions of hole 300 x 300 300 x 300 300 x 300 [length x breadth (mm)] Step 2: Pre -Soaking Test Holes ( �U Pre-soak start Date 25.06.2026 25.06.2026 25.06.2026 Time 8.30 am 8.30 am 8.30 am Step 3: Measuring Tioo Percolation Test Hole No. Date of test Time filled to 400 mm Time water level at 300 mm Time (mins) to drop 100 mm (Tioo) Average Tioo (mins) 25.06.2026 25.06.2026 25.06.2026 08:30 08:31 08:38 09:43 10:02 10:11 73 91 93 85.67 If Two> 480 minutes, then Subsurface Percolation value > 120 — site unsuitable for discharge to ground If Tioo ≤ 210 minutes, then go to Step 4; If Tico> 210 minutes, then go to Step 5; Step 4: Standard Method (where Tioo ≤ 210 minutes) Fil no. Start Finish At (min) Start Finish At (min) Start Finish At (min) Time Time (at Time Time (at Time Time (at 300 (at 200 mm) 300 (at 200 mm) 300 (at 200 mm) mm) mm) mm) 1 08:30 09:43 73 08:31 10:02 91 08:38 10:11 93 2 09:45 11:07 82 10:05 11:46 101 10:13 12:10 117 3 11:10 12:45 95 11:50 13:37 107 12:14 14:14 00:00 Average At Value 83.33 99.67 16:10 110.00 Average At/4 = Average At/4 = Average At/4 = [Hole No. 1] 20.83 [Hole No. 1] 24.92 [Hole No. 1] 27.50 Result of Test: Subsurface Percolation Value = 24.42 (min/25 mm) Conirnents: Percolation T Test Using Step 4. Results Acceptable at 24.42 min / 25mm Step 5: Modified Method (where Twoo> 210 minutes) Percolation Test Hole 1 No. Fall of Time Start Finish Time of Kcs=Tf/ T -Value waterin Factor Time Time fall Tm =4.45/ hole (mm) Tf hh:mm hh:mm (mins): Kts 300-250 8.1 00:00 0 250-200 9.7 00:00 0 200-150 11.9 00:00 0 150.100 14.1 00:00 0 Average T- Value T- Value Hole 1=(T________ Percolation Test Hole No. 3 Fall of Time Start Finish Time of Kts=Tf/ T -Value waterin Factor= Time Time fall Tm =4.45/ hole (mm) Ti hh:mm hh:mm (mins): Kts Tm 300-250 8. 250.200 9. 200-150 11. 150.100 14. Percolati on Test 2 Hole No. Fall of Time Start Finish Time of Kts=Tf/ T -Value water in Factor= Time Time fall Tm =4,45/ hole Ti hh:mm hh:mm (mins) = Ku 300.250 8.1 0 250.200 9.7 0 200-150 11,9 0 150.100 14.1 0 Average ft. Value T- Value Hole l=(T________ Result of Test: Subsurface Perolation Value = (min/25mm) Comments: Average ft -Value T-ValueHole1=1T1) 3.3(b) Surface Percolation Test for Soil Step 1: Test Hole Preparation I °ercolation Test Hole 1� Depth from ground surface to top of hole (mm) (A) Depth from ground surface to base of hole (mm) (B) Depth of hole (mm) (B -A) Dimensions of hole [length x breadth (mm)] i 400 400 400 300 x 300 300 x 300 300 x 300 300x300 300x300 300x300 Step 2: Pre -Soaking Test Holes Pre-soak start Date 25.06.2026 Time 8:40 Step 3: Measuring Too Percolation Test Hole No. Date of test Time filled to 400 mm Time water level at 300 mm Time (mins) to drop 100 mm (Tioo) Average Tioo 25.06.2026 8:38 1 2 25.06.2026 8:35 25.06.2026 25.06.2026 25.06.2026 08:40 08:38 08:35 09:45 10:07 09:52 65 89 77 77.00 If Too > 480 minutes, then Subsurface Percolation value > 90 — site unsuitable for discharge to ground If Tioo s 210 minutes, then go to Step 4; If Tioo> 210 minutes, then go to Step 5; Step 4: Standard Method (where Ttoo ≤ 210 minutes) Percolation Test Hole 1 2 3 Fil no. Start Finish At (min) Time Start Finish At (min) Time Stall Finish At (min) Time Time (at 300 (at 200 Time (at 300 (at 200 Time (at 300 (at 200 mm) mm) mm) mm) mm) mm) 1 09:40 09:45 65 08:38 10:07 89 08:35 09:52 77 2 09:48 11:15 77 10:10 11:58 108 09:55 11:18 83 3 11:18 12:23 65 12:00 13:33 93 11:20 12:55 95 Average At Value 2 69.00 96.67 85.00 Average At/4: [Hole Average At/4: [Hole Average At/4: [Hole No. 1) 17.25 No. 1] 24.17 No. 1) 21.25 Result of Test: Subsurface Percolation Value = 20.89 (min/25 mm) Comments: Average Percolation Rate Of Topsoil Material is 20.89 min which is within acceptable range Step 5: Modified Method (where Ttoo>210 minutes) Percolation Test Hole No. Fall ofwater Time �Start`rime Finish TimeofKts=Tf/ T- Valuer In hole (mm) Factor = hh:mTi m me fall (mins) Tm 4.45 / Kts Tf hh:mm =Tm 300 - 250 8.1 0 250.200 9.7 0 200-150 11.9 0 150-100 14.1 0 Average T -Value 1 -Value Hole l= I Percolation Test Hole 3 No. Fall of Time Start Finish Time of Kts=Tf/ T -Value waterin Factor= Time Time fall Tm =4.45/ hole (mm) Tf hh:mm hh:mm (mins)= Kts Tm 300-250 8.1 0 250-200 9.7 0 200-150 11.9 0 150-100 14.1 0 Average T -Value 1 -Value Hole 1= Percolati on Test 2 Hole No, Fall of Time Start Finish Time of Kts=Tf/ T -Value waterin Factor= Time Time fall Tm =4.45/ hole Tf hh:mm hh:mm (mins) = Kts 300-250 8.1 0 250-200 9.7 0 200- 150 11.9 0 150-100 14.1 0 Average 1 -Value 1 -Value Hole l= I Result of Test: Subsurface Perolation Value = (min/25mm) Comments: 3.4 The following associated Maps, Drawings and Photographs should be appended to this site characterisation form. 1. Discovery Series 1:50,000 Map indicating overall drainage, groundwater flow direction and housing density in the area. 2. Supporting maps for vulnerability, aquifer classification, soil, subsoil, bedrock. 3. North point should always be included. 4. (a) Scaled sketch of site showing measurements to Trial Hole location and (b) Percolation Test Hole locations, (c) wells and (d) direction of groundwater flow (if known), (e) proposed house (incl. distances from boundaries) (f) adjacent houses, (g) watercourses, (h) significant sites (i) and other relevant features. 5. Site specific cross sectional drawing of the site and the proposed layout' should be submitted. 6. Photographs of the trial hole, test holes and site including landmarks (date and time referenced). 7. Pumped design must be designed by a Suitably qualified person. 1 calculated percolation area or polishing filter area should be set out accurately on the site layout drawing in accordance with the code of practice's requirements. 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 distances met? Depth of unsaturated soil and/or subsoil beneath invert of gravel (or drip tubing in the case of drip dispersal system) Percolation test result: Surface: 20.89 Not Suitable for Development ❑I Identify all suitable option 1. Septic tank system (septic tank and Percolation area) (Chapter 7) No 2. Secondary Treatment System (Chapter 8 and 9) and soil polishing filter Yes (Section 10.1) 3. Tertiary Treatment System and Infiltration / Treatment area (Section 10.2) Yes Propose to install: and discharge to: 1:30 H' 1200 Sub -surface: 24.42 Suitable for Development Discharge Route' Groundwater(Invert Level Of Pipes To Be 1.2m Above Highest Known Water Table Leve I Recommend to install oakstown BAF concrete system and following Eco Pod Coco filter Groundwater Invert level of the trench/bed gravel or drip tubing (m) 700 mm BGL Site specific Conditions (e.g., special works, site improvement works testing etc. The tests indicated a T value Rating of 24.42 indicating below average percolation characteristics of the subsoil. A P value rating of 20.89 was also obtained indicating good percolation characteristics of the topsoil layer. Groundwater was not encountered in the trial pit nor was bedrock encountered. We would recommend that a purpose built sub soil percolation area is constructed with to ensure that there is 1200mm min of suitable drainage material between the invert of the percolation pipes and any known risk such as ground water. 1A discharge of sewage effluent to "waters" (definition includes any or any part of any river, stream, lake, canal, reservoir, aquifer, pond, System Type: Septic Tank Systems (Chapter 7) Tank Capacity (m3): Percolation Area No. of Trenches 4.0 Length of Trenches (m) 18.0 m Invert Level (m) 0.2 AGL Mounded Percolation Area No. of Trenches Length of Trenches (m) Invert Level (m) Click or System Type: Secondary Treatment System (Chapters 8 and 9) polishing filter (Section 10.1) Secondary Treatment Systems receiving septic tank effluent (Chapter 8) Media Type Area (m2)* Depth of Filter Invert Level Sand/Soil Click or tap Click or tap Click or tap Soil Click or tap Click or tap Click or tap Constructed Wetland Click or tap Click or tap Click or tap Packaged Secondary Treatment Systems Receiving raw wastewater (Chapter 9) Type Oakstown BAF Precast BAF Capacity PE [�� Sizing of Primary Compartment Other Click or tap Click or tap Click or tap 3.5 m3 m3 Polishing Filter*: (Section 10.1) Surface Area (m2) 40.00 m2 Option 3 — Gravity Discharge Trench Length (m) Option I — Direct Discharge Surface area (m2) Click or tapJ Option 4 — Low Pressure Pipe Distribution Click or tap Option 2 — Pumped Discharge Click or tap Trench length (m) Surface area (m2) Option 5 — Drip Dispersal Click or tap Surface area (m2) SYSTEM TYPE: Tertiary Treatment System and infiltration / treatment area (Section 10.2) Identify purpose of tertiary treatment Click or tap here to enter text. DISCHARGE ROUTE: Groundwater V Surface Water** Provide performance information demonstrating system will provide required treatment levels Click or tap here to enter text. Provide design information Click or tap here to enter text. Hydraulic Loading Rate * (I/m2.d) 30 Surface area (m2) 30 Discharge Rate (m3/hr) 0.04 *Hydraulic loading rate is determined by the percolation rate of subsoil *`Water Pollution Act discharge licence required i Y _ QUALITY ASSURANCE: Installation & Commissioning System and percolation area shall be signed off by a suitably qualified engineer with adequate PI Insurance. All recommendations within this report to be adhered to. Guidance within the revised EPA 2001 report published on 7.7.2021 to be observed. On-aoinq Maintenance System installation to be certified by manufacturers representative on completion. Maintenance contract to be agreed for annual inspection to ensure the system is functioning properly. Bi Annual desludging to take place. Company: Encore Consulting Prefix: Mr First Name: Joe Surname: Beggan Address: Killygrallen, Ballinode, Co. Monaghan H18 C677 Qualifications/Experience: Bsc (Hons) Eng., A. Eng., MIEI, MCIOB, CABE, SCSI EPA / GSI Certified Date of Report: 03.03.2026 Phone: 087-2924047 Indemnity Insurance Number: Signature: U AP 10003266 E-mail jgbeggan@gmail.com OI-TLI E SPECIFICATIONS FOR SOIL POLISHINCT FILTER 1. Treated effluent from the mechanical aeration sump unit shall be pumped intermittently or fed by gravity, to the distribution chamber in the percolation area. 2. The slope of the percolation trench from the distribution chamber shall be 1 in 200 3. The length of each of the 5 percolation trenches shall be 10m. Total length 50m. 4. The separation distance between the percolation trenches shall be 2:u (ie 2.5m centre to centre) 5. 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 centre's 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 ground 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 ground level. 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 shall be employed upslope from the percolation soil polishing filter and not closer than 2m to divert surface water away from it. 14. Care must be taken to ensure that the minimum distance is maintained between the new well proposed for the site and the percolation area and also the percolation area at the family home (see note on minimum distances). SCHEDULE OF SITE SEPARATION DISTANCES AC KALE TREATMENT SYSTEM Minimum distance to any dwelling = 7m Minimum distance to site boundary = 3m Minimum distance to trees = 3m Minimum distance to roads = tm Minimum distance to slope breaks = loin Minimum distance to watercourse streams = loin Minimum distance to soakawav = loin Minimum distance to open drain = loan Minimum distance to lake or fforeshore = 5�ktn (Table 6.3 EPA Code of Practice 2021) FILTER . Minimum distance to any dwelling = loin Minnnum distance to site boundary = 3m Minimutn distance to trees = 3m Minimum distance to roads = Sm Minimum distance to slope breaks = loin Minimum distance to water course stream = loin Minimum distance to soakawav = loin Minimum distance to open drain = 10m Minimum distance to lake or foreshore = �Chn Minimum distance to up gradient well = l to Minimum distance to down gradient well = 10m (,Table 6.3 EPA Code of Practice 2021 unless stated &theriN i--- GROLTN'D LEVEL TOPSOIL 1 00MM1 OEOTE.TTU ! L'1"ER 15,01111 WASHED STONE ABOVE PIPE O1oax1M pip£ 2;01►1Mi WASHED STONE BELOW PIPE INVERT OF TREND_ H UBSOIL MIN 0.9MM \i at! table EAC H TRENC H =G0M M WIDE SECTION THROUGH SUBSOIL PERCOLATION SYSTEM 0 ,D © � � �� Ro o p y'q c o' A 9 Lo co i p, e4y 4q o 0 o c gM .� E o a F a 11110 VVW.IIWHHI! aJ C 0 N f0 U 0 J I- 0 LL a v u x W aJ 0 I- 0. C I- C) C a) a I a a m Q wQ 40 a a Y ,J A V 0 N O a) L O J y # 'I O qaq U � r O In O Z4 pp QQ _J i c C I I I I I Q I 111 II Sm Y V O 00 1: ,c l s 0 I I a) O 2 UA C laA 0 a) L a) m .C U ^C W U) 9 Ij L. M Imo'.}.• s"x '<''�.'y`+ , lit, ..• VE 4—J LO W O \ y,. I xYI��.• ..f�.. I ; INSTRUCTIONS-------------------------------------------------------; • I • BAF System 0 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 I . 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(1) 10(31 Wall 3(1) 3 Road 4(1) 4 Site boundary 3(1) 3 Portable water source 10 30 - 100(�1 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. Q 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. Ensure there are no power lines or other hazards above the excavation site. © Ensure that there is solid ground for the stabilising "jacks" to stand on. Do not dig trenches where a jack will need to stand. O We recommend an inspection chamber (AJ) be fitted just before the BAF Unit for maintenance. Digging Instructions Oakstown BAF 6PE Wastewater Treatment System 1. Dig a hole 3200mm long [10'6"] by 2400mm wide [8ft] 2. Allow 1500mm from the bottom of the invert to the base of the hole 3. A bed of screenings will help to ensure a level surface for the tank 3200mm t ---------------------- ------------------------>I 2780mm y.__________________________________________4i ® OI W r Oakstown BAF 6PE + + 110mm ..► ..► E E E N' Inlet From o 32mm Dwelling 5 toHpercolation are 11 Omm to Piping area y * I_ Oakstown, Trim Telephone: 046-943 - 1389 E-mail: info@oreillyoakstown.com Co. Meath Fax: 046 - 943 - 7054 Web: www.oreillyoakstown.com INSTRUCTIONS }------------------------------------------------------------ OBAF�Sy�stem ---------I---75mm Oakstown BAF 6PE F Inlet _Q E o EI Lt) E T N 0 i O; ' T 1 Q Once the tank has been Installed Into the excavation it Is imperative to backfill around the tank Immediately. Q 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 the landscaping is finished and fit extra risers if required. O Our driver will leave sufficient 7 -Core Cable to reach the house. Our technician will commission the system by installing the air blower, 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 Q 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 Distribution N Box 32mi Hydrodare o Trench Inlet From Fall of 1:200 in Percolation Pipe Dwelling 110mm 4m Piping --- _, ...-- ...... minimum o 100mm 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 Only (NOT TO SCALE) Maintenance Q 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 6PE WTS :: 01/17 Oakstown, Trim Co. 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