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HomeMy WebLinkAbout2665 - Site Assessment Reportit 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. Note: To secure your work prior to forwarding to third parties please select Print,.select Printer "print to PDF" and name and save document. Step 1: Goto Menu Item File, Save As and save the file under a reference relating to the client or the planning application reference if available. Clear Form 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 at which changes in classification / characteristics c Section 3.4 Lists supporting documentation required. Section 4 Select the treatment systems suitable for this site and Section 5 Indicate the system type that it is proposed to Section 6 Provide details, as required, on the proposed s to indicate the depth N. p226, 65 e'd'Scbg NNIIjQ SECTION syto'uL APPENDIX A: SITE CHARACTERISATION FORM File Reference: Prefix: Mr First Name: John Surname: Leonard Address: Site Location and Townland: Cremartin, Castleblayney, Co. Monaghan Number of Bedrooms: [3 Maximum Number of Residents: 5 Comments on population equivalent Proposed Water Supply: Mains Private Well/Borehole Group Well/Borehole Soil Type, (Specify Type): Soil Group Gleys Gleys (50%), Acid Brown Earths (40%), Intedrumlin Peat Gleys (10%) Cut over raised peat Subsoil, (Specify Type): Bedrock Type: Massive Sandstone & miconglomerate Aquifer Category: Regionally Important I Locally Important Poor PI Vulnerability: Extreme ✓� High Moderate Low Groundwater Body: No J Status Name of Public/Group Scheme Water Supply within 1 km: N/A Source Protection Area: ZOC SI ❑ SO Groundwater Protection Response: R21 Presence of Significant Sites (Archaeological, Natural & Historical): None within 250m Past experience in the area: lone Comments: I (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). Site appears suitable to discharge to ground surface. Groundwater will be at risk if minimum separation distances are not met. Wells will be at risk if minimum separation distances are not met, Note: Only information available at the desK study stage snouia tie useu in tills seunuII. 3.1 Visual Assessment Landscape Position: Middle of Slope Slope: Steep (>1:5) Shallow (1:5-1:20) F✓ Relatively Flat (<1:20) Slope Comment Surface Features within a minimum of 250m (Distance To Features Should Be Noted In Metres) Houses: 7 Neighbouring dwelling's located within 250m radius of proposed percolation area. Site granted Planning Permission - Ref: 2560412 - approximately 50m southwest of proposed percolation area. Existing Land Use: ricultural grassland Vegetation Indicators: Predominately rushes/some grass Groundwater Flow Direction: I Southerly direction Ground Condition: Dry and Firm at time of inspection/assessment Site Boundaries: Existing hedgerow to south and east. North and West boundaries currently undefined. 3.1 Visual Assessment (contd.) Roads: Public Road approximately 100m south of proposed site Outcrops (Bedrock And/Or Subsoil): Some outcropping rock evident approximately 60m from proposed percolation area Surface Water Ponding: i None visible at time of assessment. Heavy rain for 24 hours preceding test Lakes: None within 250m of proposed percolation area Beaches/Shellfish Areas: None within 250m of proposed percolation area Wetlands: None within 250m of proposed percolation area Karst Features: None within 250m of proposed percolation area it Watercourses/Streams:" Stream located > 25m from proposed percolation area along eastern boundary it *Note and record water level 3.1 Visual Assessment (contd.) Drainage Ditches:* None within 50m of proposed site Springs:* None within 50m of proposed site Wells:* Existing well located at Dwelling House >100m southeast of proposed percolation area. 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). Based on the above information the site is potentially suitable to discharge to ground. Potential targets are groundwater/wells/surface water if minimum seperation distances are not met. "Note and record water level 3.2 Trial Hole (should be a minimum of 2.1m 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 trial hole (m): 2.1 Depth from ground surface Depth from ground surface to bedrock (m) (if present): N/A to water table (m) (if present): 1.95 Depth of water ingress: 0.15mj Rock type (if present): N/A Date and time of excavation: 21 May 2026 ij9j Date and time of examination: 11 Jun -2j Pii±i9j Depth of Surface and Subsurface Soil/Subsoil Percolation Texture & Plasticity and Soil Density/ Colour**** Preferential Tests Classification** dilatancy*** Structure Compactness flowpaths 0.1 m [iii 0.2 m 0 0.3m1 0.4 m es O.5m 0 0.6 m O.7m O.8m JEf1es 0.9 to 0 1,0m I 1,1 m LIIi 1.2m 0 1.3 m- L 1.4m 1.5m Ij 1.6 m 0 1.7 m 1.8m [III 1.9m 111 2.0m 0 2.1m l� 2.2 m 2.3 m LI_hill 2.4m 2.5m 0 2.6 m I. 2,7 m 2,8m 2.9 m 3.0 m C 3.1 m 3.2m C 3.3 m i 3.4m C 3,5m Crumb Structureless OF Light Brown Dark Brown HOLE Likely Subsurface Percolation Value: L 20 Likely Surface Percolation Value: 20 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 signs of mottling should be recorded. 3.2 Trial Hole (contd.) Evaluation: Some evidence of mottling within Trial Hole to 1.6m. Main targets likely to be groundwater/wells/surface water if minimum separate distances are not met. Fluctuations in winter water table will need to be taken into account. 3.3(a) Subsurface Percolation Test for Subsoil Step 1: Test Hole Preparation Percolation Test Hole 1 N 3 Depth from ground surface 370 390 400 to top of hole (mm) (A) Depth from ground surface I 770 790 800 to base of hole (mm) (B) Depth of hole (mm) [B - A] 400 400 400 Dimensions of hole 360 x 340 350 x 370 310 x=320 [length x breadth (mm)] Step 2: Pre -Soaking Test Holes Pre soak start Date 10 -Jun 2026 10 -Jun -2026 10 -Jun -2026 Time 08:00 08:03 08:05 2nd pre-soak Date 10 -Jun -2026 10 -Jun -2026 10 -Jun -2026 start Time 15:30 15:33 15:36 Each hole should be pre-soaked twice before the test is carried out. Step 3: Measuring Ti., Percolation Test Hole No. 1 2 3 Date of test p_11 -06 -2026H_11 -06-2026H_11-06-2026 Time filled to 400 mm 07:56 07:58 08:00 Time water level at 300 mm 08:03 08:14 08:13 Time (min.) to drop 100 mm (T,) 7.00 16.00 13.00 Average T100 12.00 If 1100> 480 minutes then Subsurface Percolation value >120 - site unsuitable for discharge to ground If T100 ≤ 210 minutes then go to Step 4; If T100 > 210 minutes then go to Step 5; Step 4: Standard Method (where T100 ≤ 210 minutes) Percolation Test Hole 1 2 .3 Fill no. Start Finish At (min) Time Time Start Finish At (min) Time Time Start Finish At (min) Time Time (at 300 (at 200 mm) mm) (at 300 (at 200 mm) mm) (at 300 (at 200 mm) mm) 1 08:03 08:20ll 7I 08:15 08:l 231 08:1411 oip 27 2 08:211108:44 231 08:381110:5111133 08:41 09:2611 45 3 Average At 08:44 09:18 34 10:51 13:2311152 09:26 10:3211 66 24.67 102.67 46.00 Value Average At/4 = [Hole No.1] I -6.171(t1) Average At/4 = [Hole No.2] 25.671(t2) Average At/4 = [Hole No.3] I 11.501(t3) Result of Test: Subsurface Percolation Value = 14,444444444444445 (min/25 mm) Comments: T -Test results In Compliance with EPA requirements Step 5: Modified Method (where T100> 210 minutes) Percolation Test Hole No. 1 Fall of water. Time Start K,, T- in hole (mm) Factor Time Fhh:mm(mins) = T, Value = T, hh:mm / T = 4.45 /K,, 300-250 I 8.1 11 ' I�J1uiUI 250 - 200 9.7 �0 0.00 =� 200- 150 11.9 == 0.00 0Ir-� 150-100 14.1 �0 0.00 OLD Average I T- Value T- Value Hole 1 = (Ti) 0.00 Percolation Test Hole No. 3 Fall of water Time Start Finish Time K,, T - In hole (mm) Factor Time Tim§e of fall = T, Value = T, hh:mm hh:mm . (mins) / Tm = 4.45 T. /K„ 300 - 250 8.1 00 0.00 l I I 250-200 I9.7 0m 0.00 == 200- 150 11.9 0� 0.00 =_ 150-100 14.1 �� 0.00 _0 Average T- Value T- Value Hole 3 = (T2) 0.00 Percolation Test Hole Np. 2 Fall of water Time Start Finish Time K„ T - in hole (mm) Factor Time Time of fall = T, Value = T, hh:mm hh:mm (mins) / T =T /K„ 300 - 250 8.1 0.00 �= 250- 200 9.7 ���0 0.0011 200- 150 11.9 LJ 0.00 == 150-100 14.11110I 0.00 I____ I_____ Average T- Value T Value Hole 2 = (T2) TooqI Result of Test: Subsurface Percolation Value = o (min/25 mm) Comments: 3.3(b) Surface Percolation Test for Soil Step 1: Test Hole Preparation Percolation Test Hole 1 2 3 Depth from ground surface 0 0LI 0 to top of hole (mm) Depth from ground surface 40 4J 400 to base of hole (mm) Depth of hole (mm) 400 400 400 Dimensions of hole [length x breadth (mm)] 310 r73�:X= 320 X 310 310x Step 2: Pre -Soaking Test Holes Date 10 -Jun -2026 10 -Jun -2026 10 -Jun -2026 Pre-soak start Time 08:05 08:09 08:11 2nd pre-soak Date 10 -Jun -2026 10 -Jun -2026 10 -Jun -2026 start Time 15:40 15:4 15:44 Each hole should be pre-soaked twice before the test is carried out. Step 3: Measuring T100 1 2 3 Percolation Test Hole No. I II II I 11 -Jun -26 11 -Jun -26 11 -Jun -2026 Date of test 08:02 08:04 08:05 Time filled to 400 mm 08:19 08:38 08:55 Time water level at 300 mm 17.00 34.00 50.00 Time to drop 100 mm (Tt00) 33.67 Average Ti., If T100 > 480 minutes then Surface Percolation value >90 - site unsuitable for discharge to ground If T100 ≤ 210 minutes then go to Step 4; If T100 > 210 minutes then go to Step 5; Step 4: Standard Method (where T100 ≤ 210 minutes) Percolation Test Hole 1 2 3 Fill no. Start Finish AT (min) Time Time Start Finish AT (min) Time Time Start Finish AT (min) Time Time (at 300 (at 200 mm) mm) (at 300 (at 200 mm) mm) (at 300 (at,200 mm) mm) ' 1 08:19 08:4311 24.00 08:38!!09:17 39.00 08:551111:32 157.00 2 08:43!!09:25 42.00!09:17!!10:06 49.00 11:32!p13:35 123.00 3 Average AT 09:25 10:19 54.00!10:06 11:13 67.00 13:55!!15:49 114.00 40.00 51.67 131.33 Value Average AT/4 = [Hole No.1] 10.001(T1) Average AT/4 = [Hole No.2] f 12.921(12) Average AT/4 = [Hole No.3] 32.8](T3 Result of Test: Surface Percolation Value = 18.58 (min/25 mm) Cnmmants- P' Test result in accordance with EPA requirements Step 5: Modified Method (where T100 > 210 minutes) Percolation Test Hole No, Fall of water Time Start Finish Time K„ T - in hole (mm) Factor Time Time of fall = T, Value = T, hh:mm hh:mm (mins) / TT = 4.45 = Tm /K 300- 250 8.1 0� 0.00 �� 250 - 200 9.7 �0 0.00 �0 200- 150 11.9 �� 0.0011= 150-100 14.1 �0 0.0011I Average I T- Value T- Value Hole 1 = (Ti) 0.00 Percolation Test Hole No. 2 Fall of water Time Start Finish Time K,, T - In hole (aTm) Factor Time Time of fall = T. Value = T, hh:mm hh:mm (mins) / T. = 4.45 =Tm /K1, 300 - 250 I8.1 �� 0.0011 250-200 9.7 �0 0.00 0I 200-150 11.9 !� 0.00 II 150-100 14.1 �0 1 0.00 1I Average I T- Value T- Value Hole 2 = (T2) 0.00 Result of Test: Surface Percolation Value = Percolation I 0! (min/25 mm) Test Hole No. 3 Fall of water Time Start Finish Time K„ T - In hole (mm) Factor Time Time of fall = T, Value = T, hh:mm hh:mm (mins) / Tm = 4.45 =Tm 1K1, 300 -250 8.1 �� 0.00 l_IF 250 - 200 [�6==F-O--001=1r� 200-150 =� 0.00 UD 150-100 I14.1 =0 0.00 r I= Average I T- Value T- Value Hole 3 = (T2) Pfi 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. The 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: 1:2001 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) 0.90 Percolation test result: Surface: I 18.58 Sub -surface: I 14.] Not Suitable for Development II Suitable for Development Identify all suitable options 1. Septic tank system (septic tank and percolation area) (Chapter 7) Yes 2, Secondary Treatment System (Chapters 8 and 9) and soil polishing filter Yes (Section 10.1) 3. Tertiary Treatment System and Infiltration / Yes treatment area (Section 10.2) Discharge Route' To groundwater Propose to install: Secondary Treatment System and soil polishing filter and discharge to: Ground Water Invert level of the trench/bed gravel or drip tubing (m) 0.20 Site Specific Conditions (e.g. special works, site improvement works testing etc. Waste Water Treatment System to be installed as per manufactures guidelines by competent tradespersons. Minimum separation distances to be met as per Table 6.3 of EPA Code of Practice Invert of trench to be 200mm above existing ground level to allow for fluctuations in winter water table. 30 meters of length of pipe work required as per Table 10.1 EPA 2021 Code of Practice, I A discharge of sewage effluent to "waters" (definition includes any or any part of any river, stream, lake, canal, reservoir, aquifer, pond, watercourse or other inland waters, whether natural or artificial) will require a licence under the Water Pollution Acts 1977-90. Refer to Section 2.4. SYSTEM TYPE: Septic Tank Systems (Chapter 7) Tank Capacity (m3) 0 Percolation Area Mounded Percolation Area No. of Trenches 0 No. of Trenches 0 Length of Trenches (m) Length of Trenches (m) Invert Level (m) 0 Invert Level (m) L� SYSTEM TYPE: Secondary Treatment System (Chapters 8 and 9) and 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 Soil Constructed Wetland Other Polishing Filter*: (Section 10.1) Surface Area (m2)* Option 1 - Direct Discharge Surface area (m2) Option 2 - Pumped Discharge Surface area (m2) Packaged Secondary Treatment Systems receiving raw wastewater (Chapter 9) Type Aquamax Capacity PE . g Sizing of Primary Compartment 37.50 Option 3 - Gravity Discharge Trench length (m) 37.50 Option 4 - Low Pressure Pipe Distribution 37.50 Trench length (m) Option 5 - Drip Dispersal Surface area (m2) 2.70 m3 30.00 30.00 2500 SYSTEM TYPE: Tertiary Treatment System and infiltration / treatment area.(Section 10.2) Identify purpose of tertiary Provide performance information Provide design information treatment demonstrating system will provide required treatment levels DISCHARGE ROUTE: Groundwater ❑ Surface Water ** ❑ Hydraulic Loading Rate * (I/m2.d) Surface area (m2) Discharge Rate (m3/hr) Hydraulic loading rate is determined by the percolation rate of subsoil "` Water Pollution Act discharge licence required QUALITY ASSURANCE: Installation & Commissioning As per manufacturers guidelines. To be certified by qualified person with appropriate Professional Indemnity Insurance Cover. On -going Maintenance As per manufacturers guidelines. Company: RB Consulting. Ltd. Prefix: Mr First Name: Barry Surname: Meegan Address: Floor 2 Clanbrassil St., Dundalk, Co. Louth Qualifications/Experience: BSc. Building Surveying, APA, Fetac Site Suitability Assessment Course Certified Date of Report: 30 -Jun -2026 Phone: 042-9343355 E-mail barry.rbconsulting@gmail.com Indemnity Insurance Number: iSURE - Policy No: RPI-IE000617-00 Signature: NOTE: To secure your work prior to forwarding to third parties please select Print, select Printer "print to PDF" and name and save document. Proposed site looking North Date of Test: 11.06.2026 Proposed site looking East Date of Test: 11.06.2026 Proposed site looking West Date of Test: 11.06.2026 Trial Hole Wall of Trial Hole wL ` w '1 f� r ' nla ., p � I e 11, 'hG al` t, la` ! l �'�1 '�� ,. Sri ��yl t ";•: fY •i�l� .� Date of Test: 11.06.2026 Close up of staff at Trial Hole Staff in Trial Hole Date of Test: 11.06.2026 Ti _ I s jai" -'t T2 Date of Test: 11.06.2026 T3 Date of Test: 11.06.2026 P1 P2 Date of Test: 11.06.2026 P3 Date of Test: 11.06.2026 0. C E G in in in m N CJ O Q � a W C, 4 Lw C1 in cr in a m a. 5m 2 u O L 1M W � o_ ° o .0 D • ee o � o G� ©° N o © o o --_ Q • • ee ae D 0 f ;iI � O C � O `0 • o Y E o >ou Q r E o � S 0 O VI J L2 co O N N J of N QT1 O F O 00 O N w Z N V 1.1 l7 [J ( .x O C r � 0 rn v S V : - � u Z H m Z to O K p � o � e O o(a 0 °d d4eO o V 000 oQo o e oa e Q •� o . • pQ0_o eo 0 0 ° O c w o m Y m m � a E E 5 J m m m a m _ a c o m a_ O c rn u w O v or u40o " u1 I!}} QI m O d ? ? 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