| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 681818 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 895511 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1167854 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 979570 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | The organization was incorporated for the purpose of operating a system for the distribution of water to its members for domestic and commercial use. |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 4100 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Angie Hammrich |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6052294749 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 38456 US Highway 12 PO Box 51 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Aberdeen |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | SD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 574020051 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/EOYAmt | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 151632 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 95051 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 233315 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 196118 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 154116 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 141913 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 113887 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 206 E 13th Ave |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 1822 Buerkle Rd |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 206 E 13th Ave |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 1302 S Union St |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 932 E 2nd St |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Redfield |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | St Paul |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | Redfield |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | Rock Rapids |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | Redfield |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | SD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | MN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | SD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | IA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | SD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 57469 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 551105245 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 57469 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 51246 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 57469 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | Dakota Directional LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | Engineering America Inc |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | Dakota Directional LLC and Milbank Winwa |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | Dewild Grant Reckert & Assoc |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | Kimlicka Construction Inc |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | Drilling |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | Tank work |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | Construction |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | Engineering |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | Construction |
| IRS990/CreditCounselingInd | 0 | 1 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 2627 |
| IRS990/CYInvestmentIncomeAmt | 0 | 233479 |
| IRS990/CYOtherExpensesAmt | 0 | 7169100 |
| IRS990/CYOtherRevenueAmt | 0 | 2318 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 10993043 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1142115 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2914998 |
| IRS990/CYTotalExpensesAmt | 0 | 10086725 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 11228840 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1654363 |
| IRS990/Desc | 0 | WEB Water Development Association, Inc. operates a high quality water treatment and distribution system to provide its members with safe water for domestic and commercial use, providing over 2 billion gallons of water in fiscal year 2017. As of September 30, 2017, WEB had approximately 6,800 miles of water pipe that served over 8,000 members in 14 South Dakota counties and 3 North Dakota counties. |
| IRS990/DescribedInSection501c3Ind | 0 | 0 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 49 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EscrowAccountLiabilityGrp/BOYAmt | 0 | 25375 |
| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 25825 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 22482 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 38768 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 77349 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 12430 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Daryl Thompson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Bob Schuetzle |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | David Sigdestad |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Arnie Goldade Oct-Nov |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Les Hinds Dec-Sept |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Mike Neuharth |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Evan Haar |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Harold Loewen Oct-Dec |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Tim Van Hatten |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Lori Goldade Jan-Sept |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Craig Oberle Jan-Sept |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Angie Hammerich |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 3950 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 3650 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 3850 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 3300 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 4030 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 3200 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 4050 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 4150 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 3600 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 103396 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | General Manager |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1979 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 9 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 2627 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 11235982 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 6000 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 9 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 81219 |
| IRS990/InterestGrp/TotalAmt | 0 | 1239066 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 2564599 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 1787759 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 225171 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 233479 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 8308 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 289940 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 281624 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1590355 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1878771 |
| IRS990/IRPDocumentCnt | 0 | 24 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 80318410 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 109844720 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 108093211 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 188411621 |
| IRS990/LegalDomicileStateCd | 0 | SD |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 7142 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersAndShrGrossIncomeAmt | 0 | 10992600 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 0 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | The Organization was incorporated for the purpose of operating a system for the distribution of water to its members for domestic and commercial use. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 28492182 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 26845776 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 92294273 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 91319620 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | -1142 |
| IRS990/NetRentalIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | -1142 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 9306 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 3416 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 109261 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 226941 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrgDoesNotFollowSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 206521 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 245707 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -2120184 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 457532 |
| IRS990/OtherExpensesGrp/Desc | 0 | Intake/Transmission/Dis |
| IRS990/OtherExpensesGrp/Desc | 1 | Water Treatment Chemica |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 3043208 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 398405 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 707813 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 540137 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 325193 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Advanced Bioenergy K-1 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 3460 |
| IRS990/OtherRevenueMiscGrp/UnrelatedBusinessRevenueAmt | 0 | 3460 |
| IRS990/OtherRevenueTotalAmt | 0 | 3460 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1996422 |
| IRS990/OtherSourcesGrossIncomeAmt | 0 | 43264 |
| IRS990/OthNotesLoansReceivableNetGrp/BOYAmt | 0 | 217896 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 195412 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 177864 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/BOYAmt | 0 | 72285160 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/EOYAmt | 0 | 70165181 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 131548 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | Angie Hammrich |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 221310 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 221310 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Water Sales to Members |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Other Operating Revenue |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Miscellaneous |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 10761796 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 172306 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 58941 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 10761796 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 172306 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 58941 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 2604 |
| IRS990/PYInvestmentIncomeAmt | 0 | 249296 |
| IRS990/PYOtherExpensesAmt | 0 | 6082552 |
| IRS990/PYOtherRevenueAmt | 0 | 2723 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 10365775 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1969462 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2563176 |
| IRS990/PYTotalExpensesAmt | 0 | 8648332 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 10617794 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1142115 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 1 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | -1142 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 20009113 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 21154439 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 6319576 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 6164815 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/AgentTrusteeEtcInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 2358233 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 639427 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 2997660 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 103934556 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 79678983 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 183613539 |
| IRS990ScheduleD/ExplanationProvidedInd | 0 | X |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/InclEscrowCustodialAcctLiabInd | 0 | 1 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 138334 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 138334 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 1662088 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 1662088 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 540137 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | Deferred Credits |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | The Association maintains a liability account for customer meter deposits. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | The Association is exempt from Federal income taxes under Section 501(c)(12) of the Internal Revenue Code of 1954. The Association is annually required to file a Return of Organization Exempt from Income Tax (Form 990) with the IRS. In addition, the Association is subject to income tax on net income that is derived from business activities that are unrelated to their exempt purposes. The Association files an Exempt Organization Business Income Tax Return (Form 990-T) with the IRS to report its unrelated business taxable income. The Association believes that it has appropriate support for any tax positions taken affecting its annual filing requirements, and as such, does not have any uncertain tax positions that are material to the financial statements. The Association would recognize future accrued interest and penalties related to unrecognized tax benefits and liabilities in income tax expense if such interest and penalties are incurred. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part IV, Line 2b: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Part X, Line 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 108093211 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 540137 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | General Members: Membership in the Corporation shall be limited to persons, rural water system associations or corporations, and bodies political situated within the area to be served by the Corporation, and reasonably accessible thereto, who have made application for membership in the Corporation, and who have agreed to pay the membership fee, and who have signed and entered into such agreements with the Corporation for the purchase of water for domestic, municipal and other approved beneficial use as are required by the corporation from time to time and have been accepted for membership by the Corporation's Board of Directors. Individuals or entities who (1) tamper with or damage WEB property, (2) cause a cross-connection or otherwise put the water quality of the system at risk, (3) obstruct WEB staff from performing their assigned duties, (4) make use of water services without reporting it, (5) have established a record of failing to pay their water bill in a timely manner, (6) otherwise engage in or display acts or behaviors not in the best interest of the corporation and which are disruptive its operation or business pan shall not be eligible for membership. The Corporation's Board of Directors shall have the right to deny membership request or to terminate the membership of any individual or entity engaging in such acts or behaviors as defined in Article VII and the by-laws. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Six rural directors shall be elected by secret ballot, one from each district, with only members residing within each district being entitled to vote for a director from that district. Three municipal directors shall be elected by secret ballot, by and from members that are bodies politic (municipalities) or bulk users receiving water service by town bulk contract rate, within the district boundary, with each such member being entitled to cast one vote for a municipal director for their district area. Directors shall be selected by plurality vote. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Yes, in some cases. There is a section in the By-laws that deals with recall of directors and referral of issues or Board decisions. For example the Board recommends By-law changes but the members must approve by a 60% vote. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | There are no committees with authority to act on behalf of the governing board. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | At a board meeting prior to filing the Form 990 with the IRS, the 990 draft was provided to the governing board for review. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | The Organization's conflict of interest policy applies to all Board Members, Members of Board committees, agents, WEB Water General Manager and all other Entity employees and all of their immediate family members. It also includes independent contractors providing services or materials to WEB Water. Collectively all such individuals will be referred to as "Covered Persons." It is the obligation of the Board and WEB Water General Manager to publicize this policy to all Covered Persons on a recurring basis. All Covered Persons must disclose all real or apparent conflicts or dualities of interest with WEB Water's activities. Additionally, Covered Persons must annually complete a conflict of interest disclosure form as specified by the Board which includes providing a written description of the facts comprising the real or apparent conflict or duality of interest to the WEB Water General Manager or a Board Officer. Where a Covered Person believes there may exist a real or apparent conflict or duality of interest, that person must, in addition to filing the notice of disclosure, abstain from making motions, participating in relevant deliberations, voting, executing agreements, attempting to influence others' votes, or taking any other similar direct action on behalf of WEB Water where the conflict or duality of interest might pertain. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | The Board reviews the General Manager's performance and sets the rate of pay. They are aware of compensation paid to similar CEOs in the region (REA co-ops, grain elevator managers, other Rural Water General Managers etc.). Each year the General Manager receives a review from the Board of Directors. For the other managers, the General Manager does an annual review and sets the rate of pay. The Board reviews the pay policy with the General Manager on an annual basis. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | Financial Statements are available only to the members. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 8 | Amortization of Contributions for Construction -2,564,462. Membership Contributions 444,484. Advanced Bioenergy, LLC K-1 Income -3,460. Advanced Bioenergy, LLC Book Income 3,254. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section A, line 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section A, line 7a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part VI, Section A, line 7b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990, Part VI, Section A, line 8b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Form 990, Part VI, Section B, line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Form 990, Part VI, Section B, line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | Form 990, Part VI, Section B, line 15a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | Form 990, Part VI, Section C, line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 8 | Form 990, Part XI, line 9: |
| IRS990ScheduleR/AssetExchangeInd | 0 | 0 |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/ControlledOrganizationInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/DirectControllingEntityName/BusinessNameLine1Txt | 0 | Web Water Development Association Inc |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/EIN | 0 | 383930884 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/EntityTypeTxt | 0 | C |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/LegalDomicileStateCd | 0 | SD |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/OwnershipPct | 0 | 1.00000 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/PrimaryActivitiesTxt | 0 | Bottled Water Retailer |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/RelatedOrganizationName/BusinessNameLine1Txt | 0 | Web Water Bottling Company |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/ShareOfEOYAssetsAmt | 0 | 82832 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/ShareOfTotalIncomeAmt | 0 | 142352 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/AddressLine1Txt | 0 | PO Box 51 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/CityNm | 0 | Aberdeen |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/StateAbbreviationCd | 0 | SD |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/ZIPCd | 0 | 57401 |
| IRS990ScheduleR/LoansOrGuaranteesFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/LoansOrGuaranteesToOtherOrgInd | 0 | 1 |
| IRS990ScheduleR/PaidEmployeesSharingInd | 0 | 1 |
| IRS990ScheduleR/PerformOfServicesByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesForOthOrgInd | 0 | 1 |
| IRS990ScheduleR/ReceiptOfIntAnntsRntsRyltsInd | 0 | 1 |
| IRS990ScheduleR/ReimbursementPaidByOtherOrgInd | 0 | 1 |