Manual methods for the measurement of a groundwater level in a well Ingestion-build-239834 Figure 1 — Upper and

Figure 1 — Upper and lower limit deviations for holes (internal features)

It is applicable to liquid fluxes of classes 1

along with ISO 16000‑38

The specifications in this document refer to

BS EN 9132:2017 supersedes BS EN 9132:2006

Manual methods for the measurement of a groundwater level in a well Ingestion-build-239834 Figure 1 — Upper and1 Scope This International Standard develops procedures and prescribes the minimum accuracy required of water level measurements made in wells using graduated steel tapes, electric tapes and air lines. Procedures and accuracy requirements for measuring water levels in a flowing well are also included, as are procedures required to establish a permanent measuring point. This International Standard discusses the advantages and limitations of each method