SWMM Network Water Quality

SWMMNetwork helps users of EPA SWMM 5.1 perform water quality and load reduction calculations.

API

via classmethod:

inp_path = 'test.inp'
G = SwmmNetwork.from_swmm_inp(inp_path)

or via add_edges_from method

G = SwmmNetwork()
G.add_edges_from_swmm_inp(inp_path)

or via Scenario constructors which help combine input and report files from SWMM 5.1, and which help append subcatchment-based pollutant data from a dataframe.

rpt_path = 'test.rpt'
sub_conc = pandas.read_csv('subcatchment_concentrations.csv', index_col=[0])
sh = Scenario(inp_path, rpt_path)
sl = ScenarioLoading(sh.all_nodes, sh.all_edges,
                     conc=sub_conc, wq_value_col='concentration')
G = SwmmNetwork(scenario=sl)
G.add_edges_from_swmm_inp(inp_path)

then to solve the network:

G.solve_network(
    load_cols='POC1',
    tmnt_flags=['TR'],
    vol_reduced_flags=['INF'],
    bmp_performance_mapping_conc={
        "BR": { # in this example "BR" is meant to indicate a bioretention BMP
            "POC1": lambda x: .3 * x  # 70% reduced
        }
    )

results = G.to_dataframe(index_col='id')