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Lapā Artēziskā aka:
"Visbiežāk dziļurbumu ierīko, lai iegūtu dzeramo ūdeni no vidējiem zemes slāņiem jeb dolomīta[nepieciešama atsauce], kur ūdens ir tīrāks un kvalitatīvāks. Retāk[nepieciešama atsauce] dziļurbumu ierīko no vēl dziļāka slāņa — smilšakmens slāņa, šis ūdens ir ļoti tīrs, bet nereti ar palielinātu dzelzs saturu. Ar dziļurbumu iegūtais ūdens ir kvalitatīvāks,[nepieciešama atsauce] salīdzinot ar ūdeni, kas iegūts no augšējiem zemes slāņiem jeb kvartāra slāņiem, lai arī šis ūdens ieguves veids no smilts vai grants, ierīkojot filtrācijas urbumu vai spici, ir visbiežāk izmantotais variants.
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