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HomeMy WebLinkAbout2560528 - F.I. Maps. Trial Holes Test Holes under test RECEIVED: 11/08/2026 Geo logical Survey Irelan d © Tailte É ireann | Tailt e É ireann | G eologi cal Su rvey Ire land | Teagas c, EPA & GSI | Env ironmental Pro tec tion Ag ency | Thi s m ap a nd its d a ta m a y no t b e u se d o r r ep ro d uc ed fo r co mm er ci al pu rp o se s w ith o ut th e p ri or w ri tten p er mi ssi on o f C o p yri gh t h ol d ers . Thi s m ap is a u se r g en e ra ted sta tic o u tpu t fro m a n In ter ne t ma p pi n g s ite an d is fo r g en e ra l re fe ren c e o n ly. Da ta l a ye rs th at a p pe a r o n th is m a p m ay or m a y n ot b e a cc ur ate , cu rre n t, o r o the rw i se r el ia b le . µ Map C e nt re C o ordi n ates (IT M) 6 85 ,2 51 8 22 ,33 6 IE_GSI_San d_a nd_G ra...Re gion ally impo rtan tgravel aqu ifer Locally impo rtan tgravel aqu ifer IE_GSI_Aqu ife r_G... IE_GSI_Bedro ck_A qui f...Rk c - R eg ion allyImportant Aqu ife r -Ka rs tifie d (con du it) Rk d - R eg iona llyImportant Aqu ife r -Ka rs tifie d (d iff use) Rk - Re gio nallyImportant Aqu ife r -Ka rs tifie d Rf - Re gio na llyImportant Aqu ife r -Fiss ur ed b ed ro ck Rf/Rk - Re gio na llyImportant Aqu ife r -Fiss ur edbedrock/Re gio na llyImportant Aqu ife r -Ka rs tifie d Lm - Lo ca llyImportant Aqu ife r -Be dr oc k w hich isGenerally M ode ra te lyProductive Lk - L ocallyImportant Aqu ife r -Ka rs tifie d Ll - Lo ca lly Impo rt an tAquifer - Bedr oc kwhich is Mod er atelyProductive o nly inLocal Zo ne s Pl - Po or Aq uifer -Be dr ock w hic h isGenerallyUnproductive exc ep tfor Lo ca l Z one sPu - Poor Aqu ife r -Be dr ock w hic h isGenerallyUnproductive Lak e Un cla ss ified IE GS I G roun dwater D ata Ireland Legend An Roin Com hshaoil,Aeráide agus CumarsáideDepartment pf t he Environment,Cli mate and Communic ati ons Sn ap s ho t D ate : N ov e mb e r 11 , 20 2 5 Tail te E ireann© Tai lte Ei reann Ordnance /Gov ernment of Ireland© Geologic al Surv ey Ireland/Governm ent of I reland RECEIVED: 11/08/2026 Geo logical Survey Irelan d © Tailte É ireann | Tailt e É ireann | G eologi cal Su rvey Ire land | Teagas c, EPA & GSI | Env ironmental Pro tec tion Ag ency | Thi s m ap a nd its d a ta m a y no t b e u se d o r r ep ro d uc ed fo r co mm er ci al pu rp o se s w ith o ut th e p ri or w ri tten p er mi ssi on o f C o p yri gh t h ol d ers . Thi s m ap is a u se r g en e ra ted sta tic o u tpu t fro m a n In ter ne t ma p pi n g s ite an d is fo r g en e ra l re fe ren c e o n ly. Da ta l a ye rs th at a p pe a r o n th is m a p m ay or m a y n ot b e a cc ur ate , cu rre n t, o r o the rw i se r el ia b le . µ Map C e nt re C o ordi n ates (IT M) 6 85 ,4 35 8 22 ,38 1 IE_GSI_Gr oundw at er_V...Ro ck at or n earSurface o r Kar st Extre me Hig h Mode ra t e Low Water IE GS I G roun dwater D ata Ireland Legend An Roin Com hshaoil,Aeráide agus CumarsáideDepartment pf t he Environment,Cli mate and Communic ati ons Sn ap s ho t D ate : N ov e mb e r 11 , 20 2 5 Tail te E ireann© Tai lte Ei reann Ordnance /Gov ernment of Ireland© Geologic al Surv ey Ireland/Governm ent of I reland RECEIVED: 11/08/2026 Geo logical Survey Irelan d © Tailte É ireann | Tailt e É ireann | G eologi cal Su rvey Ire land | Teagas c, EPA & GSI | Env ironmental Pro tec tion Ag ency | Thi s m ap a nd its d a ta m a y no t b e u se d o r r ep ro d uc ed fo r co mm er ci al pu rp o se s w ith o ut th e p ri or w ri tten p er mi ssi on o f C o p yri gh t h ol d ers . Thi s m ap is a u se r g en e ra ted sta tic o u tpu t fro m a n In ter ne t ma p pi n g s ite an d is fo r g en e ra l re fe ren c e o n ly. Da ta l a ye rs th at a p pe a r o n th is m a p m ay or m a y n ot b e a cc ur ate , cu rre n t, o r o the rw i se r el ia b le . µ Map C e nt re C o ordi n ates (IT M) 6 85 ,2 51 8 22 ,33 6 IE GS I G roun dwater D ata Ireland Legend An Roin Com hshaoil,Aeráide agus CumarsáideDepartment pf t he Environment,Cli mate and Communic ati ons Sn ap s ho t D ate : N ov e mb e r 11 , 20 2 5 Tail te E ireann© Tai lte Ei reann Ordnance /Gov ernment of Ireland© Geologic al Surv ey Ireland/Governm ent of I reland RECEIVED: 11/08/2026 Geo logical Survey Irelan d © Tailte É ireann | Tailt e É ireann | G eologi cal Su rvey Ire land | Teagas c, EPA & GSI | Env ironmental Pro tec tion Ag ency | Thi s m ap a nd its d a ta m a y no t b e u se d o r r ep ro d uc ed fo r co mm er ci al pu rp o se s w ith o ut th e p ri or w ri tten p er mi ssi on o f C o p yri gh t h ol d ers . Thi s m ap is a u se r g en e ra ted sta tic o u tpu t fro m a n In ter ne t ma p pi n g s ite an d is fo r g en e ra l re fe ren c e o n ly. Da ta l a ye rs th at a p pe a r o n th is m a p m ay or m a y n ot b e a cc ur ate , cu rre n t, o r o the rw i se r el ia b le . µ Map C e nt re C o ordi n ates (IT M) 6 85 ,6 38 8 22 ,25 4 IE_GSI_Str uct ural_Sy m ...Dip o f b edd ing o rmain folia tio n, oldGSI d ataFirst f olia tio n pa ra llelto b ed ding Foliat io n tr en d, T hor rand Ro ss es Gr anite s Ho rizon ta l Be dd ing Str ike a nd d ip ofbedding, r igh t w ay up Str ike a nd d ip ofbedding, w a y upunknownStrike a nd d ip of fir stfoliationStrike a nd d ip ofoverturned b edd ing Str ike a nd d ip ofsecond folia tio nStrike a nd d ip of th irdfoliationStrike a nd p lun ge o ffirst ge ner ation fo ldaxisStrike a nd p lun ge o fsecond g en era tionfold axisStrike a nd p lun ge o fthird g ene ra tio n foldaxisStrike o f v er tic a lbedding/fo liation Str ike o f v er tic a l firs tfoliation Be dr oc k O utcr op s IE_GSI_Ge ologica l_Lin... An ticlin al Ax is An t ifo rma l a xis Aq uifer Bo un da ry Ar ea Co al se am Dyk e Fau lt Gho st Lin e Gon iatite mar ineband (R 1-R 4)Litholo gical b oun da ryoffshore Metad oler ite sh ee t,mainly sillsPaleogene/ Te rtiar yDyke Sy n clin al Axis Sy n fo rma l a xis Te cton ic Slid e, b ar bson h ang ing -w all Thin s tratig rap hic alunit, d iag ra mmat icThrust, ba rb s onhanging-wa ll s ide Tu ff b an d Un co nfor mity, do tson you nge r s ide X-Sec tion IE GS I G roun dwater D ata Ireland Legend An Roin Com hshaoil,Aeráide agus CumarsáideDepartment pf t he Environment,Cli mate and Communic ati ons Sn ap s ho t D ate : N ov e mb e r 11 , 20 2 5 Tail te E ireann© Tai lte Ei reann Ordnance /Gov ernment of Ireland© Geologic al Surv ey Ireland/Governm ent of I reland RECEIVED: 11/08/2026 Geo logical Survey Irelan d © Tailte É ireann | Tailt e É ireann | G eologi cal Su rvey Ire land | Teagas c, EPA & GSI | Env ironmental Pro tec tion Ag ency | Thi s m ap a nd its d a ta m a y no t b e u se d o r r ep ro d uc ed fo r co mm er ci al pu rp o se s w ith o ut th e p ri or w ri tten p er mi ssi on o f C o p yri gh t h ol d ers . Thi s m ap is a u se r g en e ra ted sta tic o u tpu t fro m a n In ter ne t ma p pi n g s ite an d is fo r g en e ra l re fe ren c e o n ly. Da ta l a ye rs th at a p pe a r o n th is m a p m ay or m a y n ot b e a cc ur ate , cu rre n t, o r o the rw i se r el ia b le . µ Map C e nt re C o ordi n ates (IT M) 6 86 ,1 34 8 22 ,62 1 IE_GSI_Aqu ife r_G... IE_GSI_Hydro st rat igr ap...Ba salts & othe rVolcanic ro c ksPermo-Tria s sicSandstones Pe rmo -Tria s sicMudstones andGypsum Wes tph alianSandstones Wes tph alian Sh ale s Na mur ian Sha les Na mur ianSandstonesNamurianUndifferentiated Din antia n Shale s a ndLimestonesDinantian Mixe dSandstones, Sh ale sand Limest on esDinantianSandstonesDinantian PureBedded L imest on es Din antia n Up pe rImpure Lime sto nesDinantianDolomitisedLimestonesDinantian PureUnbeddedLimestonesDinantian Lo we rImpure Lime sto nesDinantian (e arly)Sa nd st o nes, Sh ale sand Limest on es Din antia n Mud ston esand Sa nd st o nes(C ork Gr ou p) De vo nia n Kilto rcan -type Sa nd sto nes De vo nia n Old R edSandstonesGranites & o th erIgneous In trus iv erocksSilurianMetasediments an dVolcanicsOrdovicianMetasediments Ord ov ic ian Vo lca nic s Ca mbr ianMetasedimen ts Pr ec am bria nQuartzites, Gn eis se s& Sc his ts Pr ec am bria n Ma rble s IE GS I G roun dwater D ata Ireland Legend An Roin Com hshaoil,Aeráide agus CumarsáideDepartment pf t he Environment,Cli mate and Communic ati ons Sn ap s ho t D ate : N ov e mb e r 11 , 20 2 5 Tail te E ireann© Tai lte Ei reann Ordnance /Gov ernment of Ireland© Geologic al Surv ey Ireland/Governm ent of I reland RECEIVED: 11/08/2026 35 Environmental Protection Agency | Code of Practice : Domestic Waste Water Treatment Systems (Population Equivalent ≤ 10) 7.1 Septic Tanks All septic tanks must comply with the requirements of the relevant parts of I.S. EN 12566; Part 1 for prefabricated septic tanks and Part 4 for septic tanks assembled on site from prefabricated kits. All compliant septic tanks must be installed in accordance with the manufacturer’s instructions. A plan and section of a typical septic tank and percolation area layout are given in Figure 7.1. Figure 7.1: Plan and section of a typical septic tank system Dwelling 7m (min) 10m (min) 18m (max)Percolation Area Distribution Device Septic Tank Manhole (change in direction & inspection) 2m 2.5m c/c Vent Stack Vents 100mm 100mm Manhole Ground Level Geotextile Membrane Gravel 2m (min) 2.50m (min c/c) 550mm 300mm minimum 100mm - 110mm pipe with 8mm holes at 4, 6 and 8 o’clock at 75mm centres A A A ARECEIVED: 11/08/2026 40 Environmental Protection Agency | Code of Practice : Domestic Waste Water Treatment Systems (Population Equivalent ≤ 10) Figure 7.4: Section of a typical raised/mounded percolation area following a conventional septic tank Base of the Percolation Trench Unsaturated Undisturbed Subsoil Ground Level Geotextile Membrane 300mm 850mm 300mm 100mm 150mm Percolation Pipe 500mm 2m (distance between trenches) Top of “Mound” Gravel 1,200mm or 2,000mm minimum above water table and/or bedrock depending on the groundwater protection response (see Table 6.3)RECEIVED: 11/08/2026 55 Environmental Protection Agency | Code of Practice : Domestic Waste Water Treatment Systems (Population Equivalent ≤ 10) 9. SECONDARY PACKAGED WASTE WATER TREATMENT SYSTEMS RECEIVING RAW WASTE WATER In recent years, many types of secondary packaged treatment systems have come on the Irish market. These may offer solutions for the treatment of domestic waste water, particularly in situations where septic tanks and percolation areas are inappropriate but the site has percolation values between 3 and 90. Such packaged waste water treatment systems treat raw waste water using bespoke media and mechanical parts to provide the conditions for secondary treatment. Such systems are required to meet the treatment standards of 20 : 30 : 20 (mg/l) for BOD5, suspended solids and ammonium nitrogen (NH4-N). They also reduce concentrations of microbial pathogens and provide partial nitrification. These systems must meet SR 66 and I.S. EN 12566 Part 3 standards. Confirmation of testing and compliance of performance with SR 66 should be checked. Where ground discharge is proposed, a secondary packaged waste water treatment system will require a polishing filter, low-pressure pipe distribution system or drip dispersal system, which will allow for further treatment of the waste water and will also convey the treated waste water to ground (see Chapter 10, especially Table 10.1, for infiltration/treatment area design). Although all systems tested to standard I.S. EN 12566 Part 3 are treated similarly in terms of use, level of treatment and functionality, each individual system should be checked to ensure that it matches the infiltration/treatment area design for a site. A typical layout for the treatment of waste water using any secondary packaged waste water treatment system that must meet these requirements is illustrated in Figure 9.1. Figure 9.1: Example of a typical packaged system and polishing filter system If the treated effluent is to be discharged to surface water, the required effluent quality will be dictated by the conditions of a water pollution discharge licence and tertiary treatment may be required. Many systems are available on the market, including the following generic treatment types: \biological/submerged aerated filters (BAFs/SAFs); \rotating biological contactors (RBCs); Manhole (change in direction) Dwelling Packaged Treatment System 7m (min) 10m (min) 10m (max) Soil/Sand Polishing Filter (gravity fed) Power Cable Distribution Box Manholes RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026 RECEIVED: 11/08/2026