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Home My WebLink About2688 - Site Assessment ReportANTHONY GREENAN, CROSSES, MILLTOWN, MONAGHAN, CO MONAGHAN. MON. CO. CO. PLANNING SECTION ,,Ub REG. NO PLANNING DEPARTMENT REF. NO. 26/88 MONAGHAN CO. COUNCIL 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: 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 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: Anthony Greenan, Crosses, Milltown, Monaghan Prefix: Mr First Name: Anthony Surname: Greenan Address: Site Location and Townland: Number of Bedrooms: I4 Maximum Number of Residents: Comments on population equivalent There are 4 double bedrooms which will equate to six adults. Proposed Water Supply: Mains Private Well/Borehole Soil Type, (Specify Type): AminDW - Deep well drained mineral (Mainly acidic) soil Limestone till. TLs Subsoil, (Specify Type): Group Well/Borehole LII Bedrock Type: DPBL Aquifer Category: Regionally Important Rf I Locally Important Poor Vulnerability: Extreme ❑ High Moderate ❑✓ Low Groundwater Body: Monaghan town Status Good Name of Public/Group Scheme Water Supply within 1 km: Tydavnet GWS Source Protection Area: ZOC SI SO ❑✓ Groundwater Protection Response: R23 Presence of Significant Sites (Archaeological, Natural & Historical): Past experience in the area: None "lone. 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). The site is potentially suitable as there appears to be no restrictions to the on -site treatment of domestic effluent. Surface water and ground water could be targets at risk. This site has an R23 response which basically means that the council are satisfied that there is not too much of a build-up of houses to cause a significant rise in nitrate and microbiological contaminants in the ground. Note: Only information available at the desk study stage should be used in this section. 3.1 Visual Assessment Landscape Position: Elevated on a South -Easterly facing slope. Slope: Steep (>1:5) Shallow (1:5-1:20) ❑✓ Relatively Flat (<1:20) ❑ Slope Comment ABOUT 1:12 Surface Features within a minimum of 250m (Distance To Features Should Be Noted In Metres) Houses: Dwelling house 30m East, 49m South-west and 55m South. House under construction at the site for which this report is for. Existing Land Use: Agricultural grassland. Vegetation Indicators: Grass.and tall Rosebay willowherb weeds. Groundwater Flow Direction: Expected South -East. Ground Condition: Firm during a spell of wet unsettled weather. Site Boundaries: Mature hedges all around. 3.1 Visual Assessment (contd.) Hioacls: Local road 56m East Outcrops (Bedrock And/Or Subsoil): None Surface Water Ponding: (None Lambe lake1.09km East North-East. Beaches/Shellfish Areas: None Wetlands: None Karst Features: None Watercourses/Streams:* Blackwater river 275m West *Note and record water level 3.1 Visual Assessment (contd.) None within 50m Spring listed 88m East Well listed 88m East The site was in good condition underfoot with the assessment being carried out during a period of unsettle( occasional showers. 3.2 Trial Hole (should be a minimum of 2.1m deep (3m for regionally important aquifers)) 2.2 1.7 0.5 1 I — 25 -Sep -2025 L 11:00 27 -Sep -2025 1 10:00 _ ri SS _- SILT / CLAY TOP SOIL SILT / CLAY subsoil Water table table 1.3m Base of trial hole 2.2m 3 threads —70mm ribbons — dilatant 3 threads - 80mm ribbons - dilatant I<.1.1111 1� BLOCKY SOFT UNCOMPACT BROWN GRASS ROOTS NONE 3.2 Trial Hole (contd.) The trial hole was 2.2m deep with two distinct layers. Top -soil that was crumb in nature and below that sub -soil that was blocky in nature and contained about 20% cobbles. The water table was at 1.7m. 3.3(a) Subsurface Percolation Test for Subsoil Step 1: 400 400 400 800 800 800 L L400 400 400 300 300 290 290 280 Step 2: 25 -Sep -2025 25 -Sep -2025 25 -Sep -2025 15:00 15:00 15:00 26 -Sep -2025 26 -Sep -2025 26 -Sep -2025 11:30 11:30 11:30 Step 3: 27-09-2025 27-09-2025 27-09-2025 09:30 09:30 09:30 10:301 10:20 I 10:20 • 60.00 50.00 50.00 53.33 I, 1i Lll .- Step 4: 10:3J 11:40 70 10:20 11:25 65 10:20 11:25]65j 11:25 1310]10J I114iofi 1350 130 1125 1320 IJ 13:50 17:10 200 13:1 16:20 190 13:20 16:4 200 133.33 126.67 =120.00 33.33 31.67 30.00 31.666666666666668 The T test was a pass but I will be recommending that the percolation area be built up level as it is on a 1:12 slope. Step 5: 0.00 C-100 0 ___I 0.00 0 CO� 0.00I=O F]0 0.00 00 0.00 000 0.00 =_ 0 =0 0.00 F� 0=0 0.00]= =0 0.001 I 0 0.00 0.00 Step 1: 290 . 290 290 300L 290 290 25 -Sep -2025 15:05 26 -Sep -2025 11:35 Step 3: 25 -Sep -2025 15:05 26 -Sep -2025 11 _35 25 -Sep -2025 15:05 26 -Sep -2025 11:35 51.67 Step 4: 10:25 11:2560.0j 10:25M11:30 65.00 L 10:30 11:50 80.001 1150 13:30 100.00 1125]i25[9000 90.00 11:30 �13_ 10 100.00 13:30 15:5545.00 12:55 15:20 145.00 13:10 IJ 150.0 98.33 105.00 108.33 24.5J 26.25 0 The topsoil at this site is of good quality and may be used to raise the soil percolation area up level. Step 5: II II 0.00 lII U II 0.00 lI0 0.00 JILLL II II II 0.0011 II 0.00 0.00 3.4 The following associated Maps, Drawings and Photographs should be appended to this site characterisation form. Groundwater Yes Yes • Secondary Treatment System and soil polishing filter Eu Ground Water 0.60 Mechanical aeration system and a soil polishing filter to be installed and constructed to EPA 2021 specifications. The percolation area shall be made level using the insitu topsoil. I recommend 50m of percolation trench in the soil polishing filter consisting of 5 lengths of trench each measuring 10m. The invert of the percolation trenches should be at 0.6m with 0.9m pervious unsaturated soil below to ensure proper polishing of the final effluent. The percolation area shall measure 12m x 13m Ensure that the final effluent from the mechanical aeration system is distributed evenly to each of the five percolation trenches. It is important to ensure that the percolation trenches and related pipe work are put in at the correct slope. A surface water drain measuring 1 m deep shall be employed (min 2m away) up -slope from the raised mound soil polishing filter to divert surface water away from the percolation area. NOTE: It is very important to ensure that the aeration pump remains on at all times on the mechanical aeration system or otherwise the system will revert to septic conditions causing odors and poorer quality effluent which may lead to clogging of the percolation trenches. LI LII 36.00 0.04j 5.00 10.00 0.60 25.00 System to be signed off by a suitably qualified person and recommendations in section 5.0 to be adhered to. Package treatment system must conform to EN 12566-3 standard. Package treatment system to be properly installed and certified by company supplying the system in accordance with the EPA 2021 code of practice. Keep records of desludging for five years. Desludge tank as recommended by manufacturer and periodically inspect the system for damage or surface ponding. Maintenance contract to be agreed by company supplying the package treatment system and contract must be adhered to so as to ensure that the system continues to function properly. Biolabs Mr Q Michael Holohan ITERERA, SCOTSTOWN, CO. MONAGHAN GSI / EPA CERTIFIED 28 -Sep -2025 08681691621 biolabsirl@outlook.com AP10002262 WELLS AND BOREHOLES ADJACENT TO THE SITE (WELL 88M) ?ublic Supply Source Protection Areas SI-Inner Protection Area SO -Outer Protection Area SOURCE PROTECTION DATA (S/O) RIVERS AND LAKES AQUIFER CATEGORY Rk VULNERABILITY MODERATE 11 = --- '\ / � � I i II BEDROCK DPBL $ •� z r f � a :4?'1 \ AERIAL VIEW OF PERCOLATION SITE MON.CO.CO. PLANNING SECTION 2726 REG. NO �'L.ANNING DEPARTMENT REF. NO. 26/88 MONAGHAN CO, COUNCIL N SKETCH OF PERCOLATION AREA INCLUDING SITE SURROUNDS ft• tz� t +r }1t��1rY /kra i _ S i�Vi4'ai' ei r i • VIEWS OF PERCOLATION SITE VIEWS OF PERCOLATION SITE VIEW OF PERCOLATION SITE .dis �"�"�:='`4a`�See4T�i!" !.y at`,`ak �a, t::! ,•�1i� 4 .:::. � :� — _ —_—---,....�� fr- :_: _____ TRIAL HOLE ON DAY OF EXCAVATION ,..•w � � . � n. - - ,� � " 'i.. y .lam•. "wiz" �'.S . * - 4 - I_ii • L . } t a L A CIF l ° t o 11 Ifr. �_ s, 7 Ssyf't I:� ^ 'h f.. r t ' \ ry.. _ c�P• ♦� �`t''.�L't'47 �`+�� 't G',C.� `t.:R ^6u & \ 4 `L� 'Af6��Jj s } r j' ... Yi d ' 1! C" h,,RR -'----ax-' r• . ' /4. r ' ` p 4.# / C.t' JJ � ir }y.•, f. S .f %>!.fit i..F i r SVAF .'.p TRIAL HOLE TWO DAYS AFTER EXCAVATION V,'1• .° �.,Y,ti � r i '•� ��°'YS� -,A Ar rTr�Yy �' I' �� j Y J V � r:. y 6�Y 1 � rij� , �� h� ;:1 ____ lr`At �� •�A y t M �bM "il Ti MON. CO. CO. PLANNING SECTION 2016 REG. NO T2 T3 T TEST HOLES PLANNING DEPART NT PER NO. 26/88 MONAGHAN CO. COUNCIL P1 P2 P3 it P TEST HOLES GROUND LEVEL TOPSOIL 100MM GEOTEXTILE LAYER 150MM WASHED STONE ABOVE PIPE 0.6M O 100MM PIPE 250MM WASHED STONE BELOW PIPE INVERT OF TRENCH SUBSOIL MIN 0.9M WATER TABLE EACH TRENCH 500MM WIDE SECTION THROUGH SUBSOIL PERCOLATION SYSTEM OUTLINE SPECIFICATIONS FOR MOUNDED SOIL POLISHING FILTER 1. Treated effluent from the mechanical aeration sump unit shall be pumped intermittently up to the distribution chamber on the percolation area feeding the 5 percolation trenches. The percolation area shall be made level using the topsoil from the site. The percolation area shall measure 12m x 13m and may be landscaped into the contours of the site. 2. The slope of the percolation trenches 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 2m (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 mound 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 top of mound. 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 1m deep shall be employed upslope of the raised mound soil polishing filter and not closer than 2m to divert surface water away from it and prevent the water table rising in wet weather. SCHEDULE OF SITE SEPARATION DISTANCES PACKAGE TREATMENT SYSTEM . Minimum distance to any dwelling = 7m . Minimum distance to site boundary = 3m . Minimum distance to trees = 3m . Minimum distance to roads = 4m . Minimum distance to slope breaks = 10m . Minimum distance to watercourse / streams = 10m . Minimum distance to soakaway =10m . Minimum distance to open drain = 10m . Minimum distance to lake or foreshore = 50m able 6.3 EPA Code of Practice 2021 POLISHING FILTER . Minimum distance to any dwelling = 10m . Minimum distance to site boundary = 3m . Minimum distance to trees = 3m . Minimum distance to roads = 4m . Minimum distance to slope breaks = 10m . Minimum distance to water course / stream = 10m . Minimum distance to soakaway = 10m . Minimum distance to open drain = 10m . Minimum distance to lake or foreshore = 50m . Minimum distance to up gradient well = 15m . Minimum distance well on same level = 30m . Minimum distance to down gradient well = 40m able 6.1 EPA Code of Practice 2021 unless stated otherwise