02 — DWF Baseline & Time Series Decomposition
Establishes dry weather flow baselines using STL decomposition, computes RDII for each wet-weather and snowmelt event, and validates results against MECP per-capita flow guidelines.
stl-decomposition dry-weather-flow rdii time-series
Pythonpandasnumpystatsmodelsmatplotlibseaborn
Key Findings
- ● STL decomposition cleanly separates diurnal wastewater patterns from wet-weather RDII events
- ● Per-capita DWF validation against MECP guidelines flags plants with chronic baseflow infiltration
- ● RDII mass balance checks confirm physically plausible runoff coefficients (1-10% of rainfall entering the sewer)