foirm treithrithe láithreáin an fhoirm a chomhlánú · 2018. 3. 13. · foirm treithrithe...

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FOIRM TREITHRITHE LáITHREáIN AN FHOIRM A CHOMHLáNú Cuid 3.2 Sachuidseo,bainúsáidasfolíneáil_____thargachceanndenasécholúnchunan doimhneachtaathraíonnant‑aicmiú/nasaintréithealéiriú. Nótaí: Déantarnaháirimharfadsanfhoirmseogohuathoibríoch. Nuairisféidir,cuirtearfaisnéisiláthairibhfoirmliostaíanuasd’fhonnearráidíféideartha asheachaint. Déantargnéitheinathraitheachlárúidticbhoscaí.Ingachcás,níorcheartachticachur inaonbhoscaamháin. Nímórgachréimselehamachlárúachomhlánúibhformáidceithrehuaireisfichemar seoaleanas:UU:NN TánadátaíarfadibhformáidLL/MM/BBBB. Isibhformáidtéacsatágachréimsesonraíeile. Isféidiranfhoirmseoaphriontáilamachagusícomhlánaithegohiomlánréidhlecur isteachinéineachtleisnadoiciméidghaolmharanóréidhlecomhdú.Isféidiríachur isteachleríomhphostfreisin. Céim 1: TéighchuiganRoghchlár File, Save As agussábháilancomhadfaoithagairta bhaineannleisangcliantnófaoithagairtaniarrataispleanálamátáantagairtarfáil. Bainúsáidasangcnaipe ’Glan an fhoirm’leisnaréimsífaisnéisearfadaghlanadh. Cuid 3.4 Liostadenadoiciméidtacaíochtaatáriachtanach. Cuid 4 Roghnaighnacóraiscóireálaatáoiriúnachdonláithreánseoagusanbealachsceite. Cuid 5 Léirighancineálcóraisatábeartaithelesuiteáil. Cuid 6 Tabhairsonraí,deréirmaratáriachtanach,maidirleisangcórascóireálabeartaithe.

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  • Foirm TreiThriThe LáiThreáinAn fhoirm A chomhlánú

    Cuid 3.2 �Sa�chuid�seo,�bain�úsáid�as�folíneáil�_____�thar�gach�ceann�de�na�sé�cholún�chun�an�doimhneacht�a�athraíonn�an�t‑aicmiú�/�na�saintréithe�a�léiriú.�

    Nótaí:

    �Déantar�na�háirimh�ar�fad�san�fhoirm�seo�go�huathoibríoch.�

    Nuair�is�féidir,�cuirtear�faisnéis�i�láthair�i�bhfoirm�liostaí�anuas�d’fhonn�earráidí�féideartha�a�sheachaint.

    Déantar�gnéithe�inathraithe�a�chlárú�i�dticbhoscaí.�I�ngach�cás,�níor�cheart�ach�tic�a�chur�in�aon�bhosca�amháin.

    Ní�mór�gach�réimse�le�ham�a�chlárú�a�chomhlánú�i�bhformáid�ceithre�huaire�is�fiche�mar�seo�a�leanas:�UU:NN

    Tá�na�dátaí�ar�fad�i�bhformáid�LL/MM/BBBB.

    Is�i�bhformáid�téacs�atá�gach�réimse�sonraí�eile.

    Is�féidir�an�fhoirm�seo�a�phriontáil�amach�agus�í�comhlánaithe�go�hiomlán�réidh�le�cur�isteach�in�éineacht�leis�na�doiciméid�ghaolmhara�nó�réidh�le�comhdú.�Is�féidir�í�a�chur�isteach�le�ríomhphost�freisin.

    Céim 1:

    �Téigh�chuig�an�Roghchlár File, Save As agus�sábháil�an�comhad�faoi�thagairt�a�bhaineann�leis�an�gcliant�nó�faoi�thagairt�an�iarratais�pleanála�má�tá�an�tagairt�ar�fáil.

    � � �Bain�úsáid�as�an�gcnaipe�’Glan an fhoirm’leis�na�réimsí�faisnéise�ar�fad�a�ghlanadh.

    Cuid 3.4

    Liosta�de�na�doiciméid�tacaíochta�atá�riachtanach.

    Cuid 4

    Roghnaigh�na�córais�cóireála�atá�oiriúnach�don�láithreán�seo�agus�an�bealach�sceite.

    Cuid 5

    Léirigh�an�cineál�córais�atá�beartaithe�le�suiteáil.

    Cuid 6

    Tabhair�sonraí,�de�réir�mar�atá�riachtanach,�maidir�leis�an�gcóras�cóireála�beartaithe.

  • AGUISÍN B: FOIRM TRÉITHRITHE LÁITHREÁIN

    1.0 SONRAÍ GINEARÁLTA (Ón iarratas pleanála)

    Teideal: Céadainm: Sloinne:

    Seoladh: Suíomh agus Baile Fearainn an Láithreáin:

    Uimhir Theileafóin: Uimhir Facs:

    Ríomhphost:

    Uaslíon Líon na seomraí Líon na seomraí cónaitheoirí: codlata Dúbailte: codlata Singile:

    Soláthar Uisce Beartaithe: Soláthar Poiblí Tobar/Tollpholl Príobháideach Tobar/Tollpholl Grúpa

    2.0 SONRAÍ GINEARÁLTA (Ón iarratas pleanála) Cineál Ithreach (Sonraigh an Cineál):

    Catagóir an Uiscígh: Tábhachtach go Réigiúnach Tábhachtach go hÁitiúil Go Dona

    Leochaileacht: Foircneach Ard Measartha Íseal Ard go hÍseal Ní fios

    Cineál na Buncharraige:

    Ainm Soláthair Uisce Phoiblí/Ghrúpscéime laistigh de 1 km:

    Scéim Chosanta Screamhuisce (Tá/Níl): Limistéar Cosanta Foinse: SI SO

    Freagra Cosanta Screamhuisce:

    Láithreáin Shuntasacha (Seandálaíochta, Nádúrtha & Stairiúla) a bheith ann:

    Taithí roimhe seo sa cheantar:

    Nótaí: (Úsáid an fhaisnéis thuas le tuairim a thabhairt ar na nithe seo a leanas: oiriúnacht fhéideartha an láithreáin, spriocanna a d’fhéadfadh a bheith i mbaol, agus/nó srianta a d’fhéadfadh a bheith ar an láithreán.)

    Tabhair faoi deara: Níor cheart ach faisnéis atá ar fáil ag céim an staidéir bínse a úsáid sa chuid seo.

    Tagairt an Chomhaid:

  • 3.0 meASÚnÚ Ar An LáiThreán

    3.1 Measúnú Súl

    Suíomh an Tírdhreacha:

    fána: Géar (>1:5) Éadomhain (1:5-1:20) measartha cothrom (

  • 3.2 Poll trialach (ba cheart go mbeadh sé 2.1m ar doimhne ar a laghad (3m i gcás uiscíoch atá tábhachtach go réigiúnach))

    Doimhneacht an phoill thrialaigh (m):

    Doimhneacht ó dhromchla na talún Doimhneacht idir dromchla na talún agus an bhuncharraig (m) (más ann di): agus an uiscechlár (m) (más ann dó):

    Doimhneacht theacht an uisce: Cineál carraige (más ann di):

    Dáta agus am na tochailte: Dáta agus am an scrúdaithe:

    Depth Soil/Subsoil Plasticity and Soil Density/ Colour**** Preferential

    0.1 m 0.2 m 0.3 m 0.4 m 0.5 m 0.6 m 0.7 m 0.8 m 0.9 m 1.0 m 1.1 m 1.2 m 1.3 m 1.4 m 1.5 m 1.6 m 1.7 m 1.8 m 1.9 m 2.0 m 2.1 m 2.2 m 2.3 m 2.4 m 2.5 m 2.6 m 2.7 m 2.8 m 2.9 m 3.0 m

    Luach dóchúil T: Tabhair faoi deara: *Ba cheart doimhneacht na bpoll dtástála síothlaithe a léiriú ar an loga thuas. (Cuir isteach P nó T

    ag na doimhneachtaí de réir mar is cuí). **Féach Aguisín E le haghaidh aicmiú BS 5930. *** Ní mór 3 shampla a thástáil le haghaidh gach léaslíne, agus ba cheart na torthaí a iontráil thuas le haghaidh gach léaslíne. **** Ba cheart breacadh ar bith atá le feiceáil a thaifeadadh.

    D’fhonn damáiste a tharlódh de thaisme a sheachaint, níor cheart measúnú poill thrialaigh nó tástálacha síothlaithe a dhéanamh i limistéir atá lonnaithe ar láithreáin shuntasacha (m.sh. LON, LCS, LfCS, agus/nó limistéir seandálaíochta srl.), nó in aice leo, gan chomhairle roimh ré a fháil ón tSeirbhís Páirceanna Náisiúnta agus Fiadhúlra nó ón tSeirbhís Oidhreachta.

    Doimhneacht na Tástála

    P/T*

    Uigeacht & Aicmiú na hIthreach/ Fo-ithreach**

    Plaisteacht agus Leatas***

    Ithirstruchtúr Dlús/Dlúithe Dath**** Conairí sreafa fabhracha

  • 3.3(a) Tástáil Síothlaithe (“T”) le haghaidh Fo-Ithreacha Doimhne agus/nó Uiscechlár

    Céim 1: Ullmhúchán an Phoill Tástála

    Poll Tástála Síothlaithe 1 2 3

    Doimhneacht idir leibhéal na talún agus barr an phoill (mm) (A)

    Doimhneacht idir leibhéal na talún agus bun an phoill (mm) (B)

    Doimhneacht an phoill (mm) [B - A]

    Toisí an phoill [fad x leithead (mm)]

    Céim 2:Na Poill Tástála a Líonadh le hUisce

    Dáta agus am tosaithe an líonta

    Ba cheart gach poll a líonadh le huisce faoi dhó sula ndéantar an tástáil. Ba cheart go mbeadh gach poll folamh sula n-athlíontar é.

    Céim 3:T100 a thomhas

    Poll Tástála Síothlaithe Uimh. 1 2 3

    Dáta na tástála

    An t-am a líonadh an poll go 400 mm

    Am nuair a bhíonn leibhéal an uisce ag 300 mm An t-achar ama ina dtiteann leibhéal an uisce 100 mm (T100)

    Meán-T100

    Má tá T100 > 300 nóiméad, tá luach T > 90 (níl an láithreán feiliúnach do sceitheadh sa talamh) Má tá T100 ≤ 210 nóiméad téigh ar aghaidh chuig Céim 4; Má tá T100 > 210 nóiméad, téigh ar aghaidh chuig Céim 5;

    x x x

    3.2 Poll Trialach (ar lean) Measúnú:

  • Céim 5: modh mionathraithe (nuair atá T100 > 210 nóiméad)

    Poll Tástála Síothlaithe Uimh. 1 2 3

    Titim an fachtóir Achar na Kfs luach fachtóir Achar na Kfs luach fachtóir Achar na Kfs luach uisce sa ama titime = Tf T ama titime = Tf T ama titime = Tf T pholl (mm) = Tf (nóim) / Tm = 4.45 = Tf (nóim) / Tm = 4.45 = Tf (nóim) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs

    300 - 250 8.1 8.1 8.1

    250 - 200 9.7 9.7 9.7

    200 - 150 11.9 11.9 11.9

    150 - 100 14.1 14.1 14.1

    meánluach-T luach T Poll 1= (t1) luach T Poll 1= (t2) luach T Poll 1= (t3)

    Torthaí na Tástála: T = (nóim/25 mm)

    nótaí:

    Céim 4: modh caighdeánach (nuair atá T100 ≤ 210 nóiméad)

    Poll Tástála Síothlaithe 1 2 3

    Uimhir Am Am ∆t (nóim) Am Am ∆t (nóim) Am Am ∆t (nóim) an líonta Tosaithe críochnaithe Tosaithe críochnaithe Tosaithe críochnaithe (ag 300 (ag 200 (ag 300 (ag 200 (ag 300 (ag 200 mm) mm) mm) mm) mm) mm)

    1

    2

    3

    meánluach ∆t

    meánluach ∆t/4 = meánluach ∆t/4 = meánluach ∆t/4 =

    [Poll Uimh. 1] (t1) [Poll Uimh. 2] (t2) [Poll Uimh. 3] (t3)

    Torthaí na Tástála: T = (nóim/25 mm)

    nótaí:

  • 3.3(b) Tástáil Síothlaithe (“P”) le haghaidh Ithir / Fo-Ithreacha Éadomhain agus/nó Maoschláir

    Céim 1: Ullmhúchán an Phoill Tástála

    Poll Tástála Síothlaithe 1 2 3

    Doimhneacht idir leibhéal na talún agus barr an phoill (mm)

    Doimhneacht idir leibhéal na talún agus bun an phoill (mm)

    Doimhneacht an phoill (mm)

    Toisí an phoill [fad x leithead (mm)]

    Céim 2: na Poill Tástála a líonadh le hUisce

    Dáta agus am tosaithe an líonta

    Ba cheart gach poll a líonadh le huisce faoi dhó sula ndéantar an tástáil. Ba cheart go mbeadh gach poll folamh sula n-athlíontar é.

    Céim 3: P100 a thomhas

    Poll Tástála Síothlaithe Uimh. 1 2 3

    Dáta na tástála

    An t-am a líonadh an poll go 400 mm

    Am nuair a bhíonn leibhéal an uisce ag 300 mm

    An t-achar ama ina dtiteann leibhéal an uisce 100 mm (P100)

    meán-P100

    má tá P100 > 300 nóiméad, tá luach P > 90 (níl an láithreán feiliúnach do sceitheadh sa talamh) má tá P100 ≤ 210 nóiméad téigh ar aghaidh chuig céim 4; má tá P100 > 210 nóiméad, téigh ar aghaidh chuig céim 5;

    x x x

  • Céim 4: modh caighdeánach (nuair atá P100 ≤ 210 nóiméad)

    Poll Tástála Síothlaithe 1 2 3

    Uimhir Am Am ∆p (nóim) Am Am ∆p (nóim) Am Am ∆p (nóim)an líonta Tosaithe críochnaithe Tosaithe críochnaithe Tosaithe críochnaithe (ag 300 (ag 200 (ag 300 (ag 200 (ag 300 (ag 200 mm) mm) mm) mm) mm) mm)

    1

    2

    3

    meánluach ∆p

    meánluach∆p/4 = meánluach∆p/4 = meánluach∆p/4 =

    [Poll Uimh. 1] (p1 ) [Poll Uimh. 2] (p2 ) [Poll Uimh. 3] (p3 )

    Torthaí na Tástála: P = (nóim/25 mm)

    nótaí:

    Céim 5: modh mionathraithe (nuair atá P100 > 210 nóiméad)

    Poll Tástála Síothlaithe Uimh. 1 2 3

    Titim an fachtóir Achar na Kfs luach fachtóir Achar na Kfs luach fachtóir Achar na Kfs luachuisce sa ama titime = Tf P ama titime = Tf P ama titime = Tf P pholl (mm) = Tf (nóim) / Tm = 4.45 = Tf (nóim) / Tm = 4.45 = Tf (nóim) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs

    300 - 250 8.1 8.1 8.1

    250 - 200 9.7 9.7 9.7

    200 - 150 11.9 11.9 11.9

    150 - 100 14.1 14.1 14.1

    meánluach-P luach-P Poll 1= (p1 ) luach-P Poll 1= (p2 ) luach-P Poll 1= (p3 )

    Torthaí na Tástála: P = (nóim/25 mm)

    nótaí:

  • 3.4 Ba cheart na Léarscáileanna, Líníochtaí agus Grianghraif ghaolmhara seo a leanas a cheangal leis an bhfoirm tréithrithe láithreáin seo.

    1 Ba cheart an limistéar síothlaithe áirithe nó limistéar an scagaire scag-ghlanta a leagan amach go soiléir ar líníocht leagain amach an láithreáin de réir riachtanais an chóid chleachtais.

    1. léarscáil 1:50,000 ón tsraith Discovery ar a léirítear draenáil fhoriomlán, treo shreabhadh an screamhuisce, agus an dlús tithíochta sa cheantar.

    2. léarscáileanna tacaíochta maidir le leochaileacht, aicmiú uiscígh, ithir, buncharraig.

    3. Ba cheart pointe an tuaiscirt a léiriú i gcónaí.

    4. (a) Sceitse den láithreán ina léirítear na toisí chuig suíomh an Phoill Thrialaigh agus

    (b) suíomh na bPoll Tástála Síothlaithe,

    (c) tobair agus

    (d) treo shreabhadh an screamhuisce (má tá sé ar eolas),

    (e) an teach beartaithe (lena n-áirítear achair ó theorainneacha)

    (f) tithe cóngaracha,

    (g) sruthchúrsaí,

    (h) láithreáin shuntasacha

    (i) agus gnéithe ábhartha ar bith eile.

    5. Ba cheart líníocht thrasghearrthach den láithreán agus den leagan amach beartaithe1 a chur isteach freisin.

    6. Grianghraif den pholl trialach, de na poill tástála agus den láithreán (le tagairt dáta agus ama orthu).

  • Úsáid an fhaisnéis ón staidéar bínse agus ón measúnú ar an láithreán thuas (.i. measúnú súl, an poll trialach agus tástálacha síothlaithe) le cinneadh a dhéanamh ar an gcineál córais/córas atá oiriúnach. Úsáidtear an fhaisnéis seo freisin leis an mbealach sceite deiridh is fearr a roghnú don fhuíolluisce cóireáilte.

    Mí-oiriúnach le haghaidh Forbartha

    Oiriúnach le haghaidh 1 Bealach Sceite

    1. Córas umair sheiptigh (umar seipteach agus limistéar síothlaithe)

    2. Córas Cóireála Tánaistí

    a. córas umair sheiptigh agus scagaire tógtha ar an láithreán agus scagaire scag-ghlanta; nó

    b. córas cóireála fuíolluisce agus scagaire scag-ghlanta pacáistithe

    4.0 TÁTAL AN TRÉITHRITHE LÁITHREÁIN

    5.0 MOLADH

    Tá sé beartaithe é seo a leanas a shuiteáil:

    agus sceitheadh sa:

    Íos-leibhéal na díge (m):

    Coinníollacha a bhaineann go sonrach leis an láithreán (m.sh. oibreacha speisialta, oibreacha tástála leis an láithreán a fheabhsú srl.)

    1 tabhair faoi deara: d’fhéadfaí go mbeadh níos mó ná rogha amháin oiriúnach le haghaidh láithreáin, agus ba cheart é seo a thaifeadadh

    2 I gcás sceite in “uiscí” (clúdaíonn an sainmhíniú gach abhainn, sruth, loch, canáil, taiscumar, uiscíoch, linn, sruthchúrsa, nó uiscí intíre eile idir nádúrtha agus shaorga, nó cuid díobh), beidh ceadúnas de dhíth faoi na hAchtanna um Thruailliú Uisce 1977-90. Féach Cuid 2.6.2.

  • CINEÁL CÓRAIS: Córas Umair Sheiptigh

    Toilleadh an Umair (m3) Limistéar Síothlaithe Limistéar Síothlaithe Dromainne

    Líon na nDíog Líon na nDíog

    Fad na nDíog (m) Fad na nDíog (m)

    Íos-Leibhéal (m) Íos-Leibhéal (m)

    CINEÁL CÓRAIS: Córas Cóireála Tánaistí

    Córais Scagaire Córais Cóireála Pacáiste

    Cineál an Mheáin Achar (m2)* Doimhneacht Íos-Leibhéal Cineál an Scagaire

    Gaineamh/Ithir

    Ithir Toilleadh PE

    Bogach Tógtha Socrú Mhéid na Príomhranna

    Eile m3

    CINEÁL CÓRAIS: Córas Cóireála Treasaí

    Scagaire Scag-Ghlanta: Achar Dromchla (m2)*

    nó Cothaithe de bharr domhantarraingthe:

    Córas Cóireála Pacáiste: Toilleadh (pe)

    Bogach Tógtha: Achar Dromchla (m2)*

    BEALACH SCEITE:

    Screamhuisce Ráta Lódála Hiodrálaí * (l/m2.d)

    Uisce Dromchla ** Ráta Sceite (m3/uair)

    CAIGHDEÁIN CÓIREÁLA:

    Caighdeán Feidhmíochta an Chórais Cóireála (mg/l) ÉBO SF NH4 - N N Iomlán P Iomlán

    DEARBHÚ CÁILÍOCHTA:

    Suiteáil & Coimisiúnú Cothabháil Leanúnach

    6.0 SONRAÍ AN CHÓRAIS CÓIREÁLA

    *Is é ráta síolaithe na fo-ithreach a chinneann an ráta lódála hiodrálaí**Tá ceadúnas sceite faoin Acht um Thruailliú Uisce de dhíth

    Líon na nDíog

    Fad na nDíog (m)

    Íos-Leibhéal (m)

  • cuideachta:

    Teideal: céadainm: Sloinne:

    Seoladh:

    cáilíochtaí/Taithí:

    Dáta na Tuarascála:

    Teileafón: facs: ríomhphost

    Uimhir an Pholasaí árachais Slánaíochta:

    Síniú: ________________________________________

    7.0 SonrAÍ mheASÚnÓir An LáiThreáin

  • Site CharaCteriSation FormCompleting the Form

    Section 3.2

    Inthissectionuseanunderline_____acrossallsixcolumnstoindicatethedepthatwhichchangesinclassification/characteristicsoccur.

    Notes:

    Allcalculationsinthisformareautomatic.

    Wherepossibleinformationispresentedintheformofdropdownselectionliststoeliminatepotentialerrors.

    Variableelementsarerecordedbytickboxes.Inallcasesonlyonetickboxshouldbeactivated.

    Alltimerecordfieldsmustbeenteredintwentyhourformatasfollows:HH:MM

    AlldateformatsareDD/MM/YYYY.

    Allotherdatafieldsareintextentryformat.

    Thisformcanbeprintedoutfullypopulatedforsubmissionwithrelateddocumentsandforyourfiles.Itcanalsobesubmittedbyemail.

    Step 1:

    GotoMenuItem File, Save As andsavethefileunderareferencerelatingtotheclientortheplanningapplicationreferenceifavailable.

    UsetheClear Formbuttontoclearallinformationfields.

    Section 3.4

    Listssupportingdocumentationrequired.

    Section 4

    Selectthetreatmentsystemssuitableforthissiteandthedischargeroute.

    Section 5

    Indicatethesystemtypethatitisproposedtoinstall.

    Section 6

    Providedetails,asrequired,ontheproposedtreatmentsystem.

  • APPENDIX B: SITE CHARACTERISATION FORM

    1.0 GENERAL DETAILS (From planning application)

    Prefix: First Name: Surname:

    Address: Site Location and Townland:

    Telephone No: Fax No:

    E-Mail:

    Maximum no. of Residents: No. of Double Bedrooms: No. of Single Bedrooms:

    Proposed Water Supply: Mains Private Well/Borehole Group Well/Borehole

    2.0 GENERAL DETAILS (From planning application) Soil Type, (Specify Type):

    Aquifer Category: Regionally Important Locally Important Poor

    Vulnerability: Extreme High Moderate Low High to Low Unknown

    Bedrock Type:

    Name of Public/Group Scheme Water Supply within 1 km:

    Groundwater Protection Scheme (Y/N): Source Protection Area: SI SO

    Groundwater Protection Response:

    Presence of Significant Sites (Archaeological, Natural & Historical):

    Past experience in the area:

    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).

    Note: Only information available at the desk study stage should be used in this section.

    File Reference:

  • 3.0 ON-SITE ASSESSMENT

    3.1 Visual Assessment

    Landscape Position:

    Slope: Steep (>1:5) Shallow (1:5-1:20) Relatively Flat (

  • 3.2 Trial Hole (should be a minimum of 2.1m deep (3m for regionally important aquifers))

    Depth of trial hole (m):

    Depth from ground surface Depth from ground surface to bedrock (m) (if present): to water table (m) (if present):

    Depth of water ingress: Rock type (if present):

    Date and time of excavation: Date and time of examination:

    Depth Soil/Subsoil Plasticity and Soil Density/ Colour**** Preferential of P/T Texture & dilatancy*** Structure Compactness flowpaths Test* Classification**

    0.1 m 0.2 m 0.3 m 0.4 m 0.5 m 0.6 m 0.7 m 0.8 m 0.9 m 1.0 m 1.1 m 1.2 m 1.3 m 1.4 m 1.5 m 1.6 m 1.7 m 1.8 m 1.9 m 2.0 m 2.1 m 2.2 m 2.3 m 2.4 m 2.5 m 2.6 m 2.7 m 2.8 m 2.9 m 3.0 m

    Likely T value: Note: *Depth of percolation test holes should be indicated on log above. (Enter P or T at depts 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.

    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.

  • 3.3(a) Percolation (“T”) Test for Deep Subsoils and/or Water Table

    Step 1: Test Hole Preparation

    Percolation Test Hole 1 2 3

    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)]

    Step 2: Pre-Soaking Test Holes

    Date and Time pre-soaking started

    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 No. 1 2 3

    Date of test

    Time filled to 400 mm

    Time water level at 300 mm

    Time to drop 100 mm (T100 )

    Average T100

    If T100 > 300 minutes then T-value >90 – site unsuitable for discharge to groundIf T100 ≤ 210 minutes then go to Step 4; If T100 > 210 minutes then go to Step 5;

    x x x

    3.2 Trial Hole (contd.) Evaluation:

  • Step 5: Modified Method (where T100 > 210 minutes)

    Percolation Test Hole No. 1 2 3

    Fall of water Time Time Kfs T – Time Time Kfs T – Time Time Kfs T –in hole (mm) Factor of fall = Tf Value Factor of fall = Tf Value Factor of fall = Tf Value = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs

    300 - 250 8.1 8.1 8.1

    250 - 200 9.7 9.7 9.7

    200 - 150 11.9 11.9 11.9

    150 - 100 14.1 14.1 14.1

    Average T- Value T- Value Hole 1= (t1) T- Value Hole 1= (t2) T- Value Hole 1= (t3)

    Result of Test: T = (min/25 mm)

    Comments:

    Step 4: Standard Method (where T100 ≤ 210 minutes)

    Percolation Test Hole 1 2 3

    Fill no. Start Finish ∆t (min) Start Finish ∆t (min) Start Finish ∆t (min) Time Time Time Time Time Time (at 300 (at 200 (at 300 (at 200 (at 300 (at 200 mm) mm) mm) mm) mm) mm)

    1

    2

    3

    Average ∆t Value

    Average ∆t/4 = Average ∆t/4 = Average ∆t/4 = [Hole No.1] (t1) [Hole No.2] (t2) [Hole No.3] (t3)

    Result of Test: T = (min/25 mm)

    Comments:

  • 3.3(b) Percolation (“P”) Test for Shallow Soil / Subsoils and/or Water Table

    Step 1: Test Hole Preparation

    Percolation Test Hole 1 2 3

    Depth from ground surface to top of hole (mm)

    Depth from ground surface to base of hole (mm)

    Depth of hole (mm)

    Dimensions of hole [length x breadth (mm)]

    Step 2: Pre-Soaking Test Holes

    Date and Time pre-soaking started

    Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before refilling.

    Step 3: Measuring P100

    Percolation Test Hole No. 1 2 3

    Date of test

    Time filled to 400 mm

    Time water level at 300 mm

    Time to drop 100 mm (P100 )

    Average P100

    If P100 > 300 minutes then P-value >90 – site unsuitable for discharge to groundIf P100 ≤ 210 minutes then go to Step 4; If P100 > 210 minutes then go to Step 5;

    x x x

  • Step 4: Standard Method (where P100 ≤ 210 minutes)

    Percolation Test Hole 1 2 3

    Fill no. Start Finish ∆p (min) Start Finish ∆p (min) Start Finish ∆p (min) Time Time Time Time Time Time (at 300 (at 200 (at 300 (at 200 (at 300 (at 200 mm) mm) mm) mm) mm) mm)

    1

    2

    3

    Average ∆p Value

    Average ∆p/4 = Average ∆p/4 = Average ∆p/4 = [Hole No.1] (p1 ) [Hole No.2] (p2 ) [Hole No.3] (p3 )

    Result of Test: P = (min/25 mm)

    Comments:

    Step 5: Modified Method (where P100 > 210 minutes)

    Percolation Test Hole No. 1 2 3

    Fall of water Time Time Kfs P – Time Time Kfs P – Time Time Kfs P –in hole (mm) Factor of fall = Tf Value Factor of fall = Tf Value Factor of fall = Tf Value = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs

    300 - 250 8.1 8.1 8.1

    250 - 200 9.7 9.7 9.7

    200 - 150 11.9 11.9 11.9

    150 - 100 14.1 14.1 14.1

    Average P- Value P- Value Hole 1= (p1 ) P- Value Hole 1= (p2 ) P- Value Hole 1= (p3 )

    Result of Test: P = (min/25 mm)

    Comments:

  • 3.4 The following associated Maps, Drawings and Photographs should be appended to this site characterisation form.

    1 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.

    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, bedrock.

    3. North point should always be included.

    4. (a) 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. Cross sectional drawing of the site and the proposed layout1 should be submitted.

    6. Photographs of the trial hole, test holes and site (date and time referenced).

  • 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.

    Not Suitable for Development

    Suitable for 1 Discharge Route

    1. Septic tank system (septic tank and percolation area)

    2. Secondary Treatment System

    a. septic tank and filter system constructed on-site and polishing filter; or

    b. packaged wastewater treatment system and polishing filter

    4.0 CONCLUSION of SITE CHARACTERISATION

    5.0 RECOMMENDATION

    Propose to install:

    and discharge to:

    Trench Invert level (m):

    Site Specific Conditions (e.g. special works, site improvement works testing etc.

    1 note: more than one option may be suitable for a site and this should be recorded

    2 A discharge of sewage effluent to “waters” (definition includes any or any part of any river, stream, lake, canal, reservoir, aquifer, pond, watercourse or otherinland waters, whether natural or artificial) will require a licence under the Water Pollution Acts 1977-90. Refer to Section 2.6.2.

  • SYSTEM TYPE: Septic Tank System

    Tank Capacity (m3) Percolation Area Mounded Percolation Area

    No. of Trenches No. of Trenches

    Length of Trenches (m) Length of Trenches (m)

    Invert Level (m) Invert Level (m)

    SYSTEM TYPE: Secondary Treatment System

    Filter Systems Package Treatment Systems

    Media Type Area (m2)* Depth of Filter Invert Level Type

    Sand/Soil

    Soil Capacity PE

    Constructed Wetland Sizing of Primary Compartment Other m3

    SYSTEM TYPE: Tertiary Treatment System

    Polishing Filter: Surface Area (m2)*

    or Gravity Fed:

    Package Treatment System: Capacity (pe) Constructed Wetland: Surface Area (m2)*

    DISCHARGE ROUTE:

    Groundwater Hydraulic Loading Rate * (l/m2.d)

    Surface Water ** Discharge Rate (m3/hr)

    TREATMENT STANDARDS:

    Treatment System Performance Standard (mg/l) BOD SS NH4 - N Total N Total P

    QUALITY ASSURANCE:

    Installation & Commissioning On-going Maintenance

    6.0 TREATMENT SYSTEM DETAILS

    * Hydraulic loading rate is determined by the percolation rate of subsoil

    ** Water Pollution Act discharge licence required

    No. of Trenches

    Length of Trenches (m)

    Invert Level (m)

  • Company:

    Prefix: First Name: Surname:

    Address:

    Qualifications/Experience:

    Date of Report:

    Phone: Fax: e-mail

    Indemnity Insurance Number:

    Signature: ________________________________________

    7.0 SITE ASSESSOR DETAILS

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