| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | monitoring | operational | mandatory | In Situ Field Investigations for Aquifer Yield | other | In situ field investigations are necessary to assess aquifer yield and aquifer hydraulic properties. | high | |
| #Q002 | reporting | reporting | mandatory | Alternate Methods Rationale | other | Where conditions and assumptions inherent in this method do not apply, alternate methods may be used, provided a scientifically defensible rationale is clearly documented by a qualified professional. | When the Cooper-Jacob Approximation to the Theis solution is not applicable | high |
| #Q003 | monitoring | operational | mandatory | Bedrock Unit Field Investigations | other | For bedrock units, in situ field investigations are necessary at the site under investigation or within 500 metre radial distance of the site boundary where the bedrock can be shown to be of the same geological formation. | Applicable for bedrock units | high |
| #Q004 | monitoring | operational | mandatory | Bedrock Yield Investigation Alternative | other | If it is not practical to determine aquifer yield by performing a pumping test, the in situ field investigations need to show whether the aquifer can sustain being pumped at 1.3 L/min. | If it is not practical to determine aquifer yield by performing a pumping test in bedrock units | high |
| #Q005 | administrative | operational | recommended | Professional Advice for Bedrock Investigation | other | The advice of a qualified professional should be obtained to plan and conduct a bedrock aquifer investigation. | high | |
| #Q006 | monitoring | operational | mandatory | Unconsolidated Units Field Investigations | other | In situ field investigations for evaluating hydraulic properties and stratigraphic conditions in unconsolidated geological units are necessary at all sites under investigation. | Applicable for unconsolidated geological units | high |
| #Q007 | reporting | reporting | mandatory | Supplementary Data Demonstration | other | Supplementary data must be demonstrated to have been obtained from the same unconsolidated geological formation as that at the site. | When supplementing site specific data with data collected on adjacent properties or affected parcels | high |
| #Q008 | reporting | reporting | mandatory | Technical Report Documentation | other | Supporting documentation and appropriate rationale must be provided in site technical reports. | When submitting data for unconsolidated geological units | high |
| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Limit Type | Limit Value | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|---|---|
| #P001 | operational | operational | mandatory | Sustained pumping rate | other | requirement | 1.3 L/min | investigations need to show whether the aquifer can sustain being pumped at 1.3 L/min | If it is not practical to determine aquifer yield by performing a pumping test in bedrock units | high |
| #P002 | design | operational | guidance | Radial distance for bedrock data | other | requirement | <= 500 metre | in situ field investigations are necessary at the site under investigation or within 500 metre radial distance of the site boundary | where the bedrock can be shown to be of the same geological formation. | high |
| #P003 | design | operational | guidance | Radial distance for unconsolidated geological units data | other | requirement | <= 500 metres | Site specific data may be supplemented with data collected on adjacent properties or affected parcels located within 500 metres radial distance of the site boundary. | Supplementary data must be demonstrated to have been obtained from the same unconsolidated geological formation | high |
| #P004 | design | treatment | guideline | Coefficient of storage (S) for confined aquifer | other | OG | 1.0 x 10 -4 dimensionless | For use in estimation of aquifer yield, the equation may be simplified by incorporation of typical default values for less sensitive input parameters | confined aquifer | high |
| #P005 | design | treatment | guideline | Coefficient of storage (S) for unconfined aquifer | other | OG | 1.0 x 10 -1 dimensionless | For use in estimation of aquifer yield, the equation may be simplified by incorporation of typical default values | unconfined aquifer | high |
| #P006 | design | operational | guideline | Time of pumping (t) | other | OG | 100 days | t = 100 days = 8640000 s | estimation of aquifer yield default values | high |
| #P007 | design | operational | guideline | Maximum available drawdown (smax) - unconfined aquifer | other | requirement | 70 % | maximum available drawdown (smax) equal to 70% of the saturated thickness | In unconfined aquifers | high |
| #P008 | design | operational | guideline | Maximum available drawdown (smax) - confined aquifer | other | requirement | 100 % | maximum available drawdown equal to 100% of the confining head (hc) | In confined aquifers, when the full saturated thickness of the aquifer is screened | high |
| #P009 | design | operational | guideline | Screening interval (unconfined) | other | requirement | 1/3 to 1/2 fraction of saturated thickness | screening the lower one-half to one-third of the saturated aquifer corresponds to a maximum available drawdown (smax) equal to 70% of the saturated thickness. | In unconfined aquifers | high |
| #P010 | design | operational | guideline | Well screen diameter (example) | other | requirement | 0.1524 m | For a confined aquifer, 6-inch (0.1524m) diameter well screen | Used in example calculations for yield | high |
| #P011 | design | operational | guideline | Well efficiency (ideal) | other | OG | 100 % | e = well efficiency (assumed to be 100% for an ideal well) | Used for calculating maximum available drawdown | high |
| #P012 | design | operational | guideline | Time of pumping (seconds) | other | OG | 8640000 s | t = 100 days = 8640000 s | Simplified default value for yield estimation | high |
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | t | time | high | |
| #D002 | r | radial distance | high | |
| #D003 | s | drawdown | high | |
| #D004 | K | hydraulic conductivity | high | |
| #D005 | b | saturated thickness | high | |
| #D006 | S | coefficient of storage | high | |
| #D007 | smax | maximum available drawdown | high | |
| #D008 | hc | confining head | high | |
| #D009 | Q | rate of pumping (m 3 /s) | high | |
| #D010 | T | transmissivity of water bearing unit (m 2 /s) | high | |
| #D011 | r | radial distance from well (m) | high | |
| #D012 | s | water level drawdown (m) at pumping rate (Q) and distance (r) | high | |
| #D013 | t | time of pumping (s) | high | |
| #D014 | K | hydraulic conductivity (m/s) | high | |
| #D015 | b | saturated thickness (base of the aquifer to the static water table) | high | |
| #D016 | hc | confining head (base of the aquifer to the static water table) | high | |
| #D017 | e | well efficiency (assumed to be 100% for an ideal well) | high | |
| #D018 | S | coefficient of storage (dimensionless) | high | |
| #D019 | smax | maximum available drawdown | high |