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D5787-20 – Standard Test Method Technical Guide
The ASTM D5787-20 standard, formally designated as the Standard Practice for Monitoring Well Protection At or Near Land Surface, provides a critical framework for safeguarding groundwater monitoring installations. This practice is issued under the fixed designation D5787 and promotes the development of durable and reliable protection against natural and anthropogenic damage. The primary goal is to preserve the costly and comprehensive installation effort, ensuring the well continues to provide representative potentiometric and water quality data throughout its design life.
🛡️ Scope and Application
The scope of D5787-20 identifies specific design and construction considerations that must be applied to monitoring wells. It strongly emphasizes that surface damage is a frequent cause of well failure or compromised data quality. Access control is a foundational element, ensuring physical security and making tampering evident.
| 🔍 Scope Element | 📝 Description |
|---|---|
| Primary Intent | Protection from events that impair water level or water quality monitoring data. |
| Applicable Devices | Monitoring wells, piezometers, permeameters, temperature or moisture monitors, and seismic devices. |
| Unit Standardization | SI units are regarded as the standard; inch/pound units are for information only. |
| Data Reporting | All observed and calculated values must conform to the significant digits and rounding guidelines established in Practice D6026. |
⚠️ Professional Judgment Required: As stated in Section 1.6, this standard offers a set of instructions but cannot replace education or experience. It must be applied with professional