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This series consists of water volume runoff forecasting files created by the Water Rights Branch and its successor, the Water Management Branch. Data in the files on water flow and water volume was collected from 1919-1983, but the majority of the records were created from around 1936-1977. Records relate to forecasting river flows and water levels during floods or times of drought. They cover major rivers, reservoirs and lakes from around the province. Records include reports, studies, data, charts, histograms, working notes, and information on the equations and procedures used to create forecasts.

The records are primarily arranged by file code, which correspondence to a particular geographical location and/or study. Records without file codes are arranged alphabetically by the name of the body of water.

These records can be scheduled under Environment ORCS 35250-70.

This series consists of reports, studies and data related to the monitoring of water pollution resulting from nearby mining operations in Buttle Lake and the greater Campbell River watershed on Vancouver Island. The records were created by the Water Management Branch, predominantly from 1981-1983. The records relate to short and long term studies on the bioaccumulation and other impacts of heavy metals and mine tailings on the water, sediment, plankton, animals and plants in the lake. The records include final reports, studies, drafts, maps, raw data, water quality reports, notes, correspondence, charts, graphs and tables.

This series consists of reports, correspondence and other records related to the Thompson River Basin pre-planning study from 1975-1981. Most records were created or used by the Water Management Branch and Water Investigations Branch.

The records relate to a federal-provincial agreement to conduct a pre-planning study of water in the Thompson River Basin. The study was intended to describe the basin’s water resources, and identify existing and potential water resource problems related to water quality and quantity. The study was to begin looking at solutions to these problems and the value of a longer-term planning study. Records document the creation and implementation of the study which involved multiple ministries from both the provincial and federal governments. The study involved scientific studies and public consultation to gain an understanding of water management issues in the area, and their associated land use and economic activity.

Records include correspondence, draft studies, reports used as reference material, minutes, maps, photographs and newspaper clippings.

Records were selected for permanent retention under one time schedule number 890487.

The series contains various agreements related to funding for water-related projects by the Water Management Division of the Ministry of Environment, Lands and Parks. Many of the records in this series are memorandum of understanding and accompanying files detailing financial contributions from the Division toward various water studies, such as groundwater studies. There are also records regarding funding for special projects, such as flood management and dyke construction.

The records show what the projects were, who was involved with the projects and how much money the Water Management Division was able to contribute.

The records are arranged using various primary numbers from the Administrative Records Classification System (Schedule 100001) and include 152-25 : approved municipal agreements, 950-20: federal agreements and 1150-30: grant contribution case files.

This series contains special studies and reports on water management, power projects and related topics.

Series consists of subject index cards to W files and O series correspondence relating to water rights and water resources development. Includes file references to irrigation districts, dams, rivers and streams, improvement districts, water users' committees, dyking districts, fire protection districts, flood control, and drainage.

This series consists of an index to orders-in-council relating to water rights and water licenses, from 1897-1978. Arranged alphabetically.

This series consists of correspondence files relating to water management, water utilities, and water rights applications. Includes correspondence with Dewdney-Alouette Regional District, 1972-1978, and Minutes Of Dewdney-Alouette Technical Planning Committee, File 4987; Sunshine Coast Regional District, 1967-1978, File 3787; and Squamish-Lillooet Regional District, 1969-1976, regarding water supply.

The series consists of records created by the Water Rights Branch, its predecessor, the Dept. of Lands and Works and its successor, the Water Management Branch. Throughout its existence, the Water Rights Branch (WRB) acquired and created a large central set of plans, maps, and engineering drawings which was assigned a single set of sequential water rights plan numbers. Over time, the original plan series was divided into separate sub-series for the use of particular operational units.

The water rights plans series documents a broad range of WRB activities. It includes: plans and engineering drawings submitted to the WRB by individuals, corporations, and municipalities as part of their applications for water licences or for approval of works; survey plans and maps prepared by WRB field engineers and regional engineers in support of licensing activities, irrigation studies, water power investigations and dam inspections; general reference maps used by WRB staff; and a variety of charts, graphs, and other items used for WRB functions such as stream measurement and precipitation monitoring. Taken as a whole, this series constitutes a wealth of often highly detailed cartographic information on regions and communities throughout British Columbia, information which in many cases is not available elsewhere.

Of particular interest are early large-scale maps and plans which provide extensive topographic information and vegetation notes for many areas of B.C. well before those areas were covered by standard topographic maps, including areas which were later flooded due to dam construction. As well, some of the early plans of towns and of agricultural, commercial, and industrial sites include such detailed cultural and cadastral information as the location and identity of buildings and the names of property owners affected by proposed water projects. The series also contains invaluable documentation of specific major hydro-electric, irrigation, and waterworks projects in the form of site plans and engineering (structural) drawings. The series' value is enhanced by the fact that many of the items contain numbers which can be used to link the items with related records such as water records, conditional and final licences; correspondence files, water rights and reference maps, field notes, and a variety of reports.