91.1 Annual Reports (1856-1899, 1901, 1904-1913, 1915-1917, 1919-1923, 1943-1969, FY 1970-FY1978, FY1980-FY1982, FY1985-FY1987, FY1989, FY1993)91.2 Papers (1855-1908, 1970)
91.3 Water Pollution Control Plants. Annual Reports (1967, 1971)
91.4 Accident Prevention Program. Annual Report (1966)
91.5 Financial Statement (1960-1963)
91.6 Water Rent Assessments for Establishments Using Large Quantities (1864)
91.7 Rain Gauge Record (1884-1910; missing 1885-1886, 1890, 1894-1895, 1898, 1901, 1903-1906, 1908-1909)
91.8 Record of Pumpage (1898)
91.9 Iron Water Pipe Laid (1819-1896)
91.10 Log Book, Public Complaints (1943-1946)
91.11 Repairs Record (1882)
91.12 Purveyors' Reports of Streets Requiring Repaving (ca. 1887)
91.13 Maps (1876-?)
91.14 Filtration, Bureau of: Annual Report (1904)
91.15 Filtration, Bureau of: Papers (1900-1904)
91.16 Filtration, Bureau of: Accounts Ledger (1900-1907)
91.17 Germantown Water Company. Accounts Ledger (1857-1865)
91.18 Germantown Water Company. Consumers' Accounts (1861-1867)
91.19 Germantown Water Company. Day Book (1856-1859)
91.20 Germantown Water Company. Stock and Transfer Book (1851-1864)
91.21 Frankford Creek Flood Control Project. Plans (1956)
91.22 Reports and Publications (1861, 1898, 1909, 1914, 1957-1958, 1960-1962, 1965-1968, 1970-1973)
91.23 Time Books (March 1875-June 1904; missing August 1875, October 1875, March 1877-July 1887, August 1898-June 1900.)
91.24 Patronage Appointment Books (1875-1876, 1879)
91.25 Warrant Books (20 November 1854 - 3 October 1864)
91.26 Order Books (12 July 1859 - 29 July 1861)
91.27 Fairmount Pumping Station. Engineer's Daily Report (January 1886-July 1909)
91.28 Fairmount Pumping Station. Stores Received and Expended (January 1886 - January 1890)
91.29 Biennial Reports (1968-1975)
91.30 Reports and Publications Received (1947, 1957, 1960, 1963)
91.31 Water Pollution Control Division. Annual Report (1966-1969, FY1970-FY1971, FY 1980)
91.32 Sewage Operations. Annual Report (1964)
91.33 Deputy Commissioner for Sewage Operations. Files (1953-1963)
91.34 Plans of the Water Mains of the Philadelphia Suburban Water Company in Oak Lane. (1904-1925)
91.35 Water Treatment Section. Annual Report (1979)
91.a Accounting Division / Billing Transcripts - Residential91.aa Collections Division / Informal Hearing Files
91.ab Customer Service Division / Adjustments to Customer Accounts
91.ac Customer Service Division / Customer Complaint Records
91.ad Customer Service Division / Customer Assistance Programs
91.ae Customer Service Division / Private Grant Funded Programs
91.af Customer Service Division / Tenant Records
91.ag Meter Reading Division / Daily Meter Reading Reports
91.ah Meter Reading Division / Phone Captured Meter Readings
91.b Accounting Division / Billing Transcripts - Commercial
91.c Accounting Division / Billing Computation Proof Listing - Residential
91.d Accounting Division / Billing Computation Proof Listing - Commercial
91.e Accounting Division / Billing Adjustment Records
91.f Accounting Division / Payment Receipts
91.g Accounting Division / Billing Adjustment Transmittal
91.h Accounting Division / Detailed Payment Listings
91.i Accounting Division / Payment Summaries
91.j Accounting Division / Accounts Support Data
91.k Accounting Division / Customer Name and Address Changes
91.l Accounting Division / Customer Account Statistical Changes
91.m Accounting Division / Accounts Receivable Reconciliation
91.n Accounting Division / Account Status Requests
91.o Accounting Division / Water Meter Reading Records
91.p Accounting Division / Water Billing Information
91.q Collections Division / Tax Review Board Files
91.r Collections Division / Customer Account Code Changes
91.s Collections Division / Collection Activity Data
91.t Collections Division / Sheriff Sales
91.u Collections Division / Payroll Deduction
91.v Collections Division / Medical Emergency Program
91.w Collections Division / Judicial Collection Activity
91.z Collections Division / Informal Hearing Files