December 2018
$58M
February 2019
$30M
April 2019
$23M
August 2019$19M
June 2019$22.5M
Tier Range (ft2) % Parcels 2021 2022 2023 2024 2025 2026 20271 0 - 2,000 42.53% $4.50 $4.50 $5.09 $5.89 $5.92 $6.20 $6.57
2 2,001 - 4,000 40.65% $4.84 $4.84 $5.48 $6.34 $6.37 $6.67 $7.07
3 4,001 - 6,000 7.39% $6.15 $8.21 $9.58 $11.08 $11.14 $11.66 $12.36
4 6,001 - 10,000 3.61% $9.59 $12.82 $14.94 $17.29 $17.38 $18.20 $19.29
5 10,001 - 20,000 2.41% $17.61 $23.52 $27.43 $31.74 $31.90 $33.41 $35.41
6 20,001 - 30,000 0.94% $31.92 $42.65 $49.73 $57.54 $57.84 $60.57 $64.19
7 30,001 - 60,000 1.14% $53.29 $71.19 $83.01 $96.06 $96.55 $101.12 $107.15
8 60,001 - 100,000 0.48% $99.53 $132.97 $155.05 $179.42 $180.33 $188.86 $200.13
9 100,001 - 250,000 0.51% $189.81 $253.57 $295.67 $342.14 $343.88 $360.15 $381.64
10 250,001 - 500,000 0.22% $436.30 $582.88 $679.65 $786.47 $790.47 $827.86 $877.27
11 500,001 - 1,000,000 0.08% $864.01 $1,154.27 $1,345.90 $1,557.43 $1,565.37 $1,639.40 $1,737.24
12 1,000,001 - 5,500,000 0.04% $1,844.67 $2,464.39 $2,873.52 $3,325.15 $3,342.09 $3,500.16 $3,709.04
13 5,500,001 + 0.00% $5,803.83 $7,753.61 $9,040.86 $10,461.82 $10,515.10 $11,012.44 $11,669.63
Percent of Parcels not impacted 43% 43% 0% 0% 0% 0% 0%
Total Maximum Aggregate
Credit = 75%
Maximum Credit Possibilities:
No Direct Discharge: 50%
Ratio Credit: 50%
Direct Discharge: 75%
Note:
Properties can only receive either Direct Discharge (OR) Ratio (OR) Quantity/Quality
Evaluation Basis Technical Criteria Credit % On-Site Stormwater Management Practices
Quantity Credit Based on Levels Retention or Detention Ponds
Level 1:Post-Development Runoff Rate
100% of AllowablePre-Development 10%
Level 2:Post Development Runoff Rate
90% of AllowablePre-Development 15%
Level 3:Post-Development Runoff Rate
80% of AllowablePre-Development 20%
Level 4:Post-Development Runoff Rate
70% of AllowablePre-Development 25%
Quality Credits Case-by-Base Raingardens, Infiltration Basins, Bioswales, Non-Structural
Runoff Quality: Post-Development above Pre-Development Level
Improve Quality; Reduce Pollutant Load
10%, 15%, 20%, 25%
Direct Discharge Credit
Discharge to Kansas or Missouri Rivers Direct Discharge (and/or) via Private System 75%
Ratio Credit
Ratio of Pervious Area to Impervious Area 30:1 50%
Total Maximum Aggregate
Credit = 75%
Maximum Credit Possibilities:
No Direct Discharge: 20%
Ratio Credit: 50%
Direct Discharge: 75%
Note:
Properties can only receive either Direct Discharge (OR) Ratio (OR) Quantity/Quality
Evaluation Basis Technical Criteria Credit % On-Site Stormwater Management Practices
Quantity Credit Based on Levels Retention or Detention Ponds
Post-Development Runoff Rate 70% of Allowable Pre-Development 20%
Quality Credits Case-by-Base Raingardens, Infiltration Basins, Bioswales, Non-Structural
Runoff Quality: Post-Development above Pre-Development Level
Improve Quality; Reduce Pollutant Load 20%
Direct Discharge Credit
Discharge to Kansas or Missouri Rivers Direct Discharge (and/or) via Private System 75%
Ratio Credit
Ratio of Pervious Area to Impervious Area 30:1 50%
Total Maximum Aggregate
Credit = 75%
Maximum Credit Possibilities:
No Direct Discharge: 10%
Ratio Credit: 50%
Direct Discharge: 75%
Note:
Properties can only receive either Direct Discharge (OR) Ratio (OR) Quantity/Quality
Evaluation Basis Technical Criteria Credit % On-Site Stormwater Management Practices
Quantity Credit Based on Levels Retention or Detention Ponds
Post-Development Runoff Rate 70% of Allowable Pre-Development 10%
Quality Credits Case-by-Base Raingardens, Infiltration Basins, Bioswales, Non-Structural
Runoff Quality: Post-Development above Pre-Development Level
Improve Quality; Reduce Pollutant Load 10%
Direct Discharge Credit
Discharge to Kansas or Missouri Rivers Direct Discharge (and/or) via Private System 75%
Ratio Credit
Ratio of Pervious Area to Impervious Area 30:1 50%
New Option 3 – Tiered
Tier Range (ft2) % Parcels 2021 2022 2023 2024 20251 0 - 10,000 94.2% $5.00 $5.88 $6.84 $7.94 $8.122 10,001 - 100,000 4.9% $38.21 $56.53 $65.80 $76.34 $78.113 100,001 + 0.8% $363.59 $537.94 $626.10 $726.40 $743.25
Option 2 – Tiered
Tier Range (ft2) % Parcels 2021 2022 2023 2024 20251 0 - 2,000 42.53% $4.50 $4.50 $5.09 $5.89 $5.922 2,001 - 4,000 40.65% $4.84 $4.84 $5.48 $6.34 $6.373 4,001 - 6,000 7.39% $6.15 $8.21 $9.58 $11.08 $11.144 6,001 - 10,000 3.61% $9.59 $12.82 $14.94 $17.29 $17.385 10,001 - 20,000 2.41% $17.61 $23.52 $27.43 $31.74 $31.906 20,001 - 30,000 0.94% $31.92 $42.65 $49.73 $57.54 $57.847 30,001 - 60,000 1.14% $53.29 $71.19 $83.01 $96.06 $96.558 60,001 - 100,000 0.48% $99.53 $132.97 $155.05 $179.42 $180.339 100,001 - 250,000 0.51% $189.81 $253.57 $295.67 $342.14 $343.88
10 250,001 - 500,000 0.22% $436.30 $582.88 $679.65 $786.47 $790.4711 500,001 - 1,000,000 0.08% $864.01 $1,154.27 $1,345.90 $1,557.43 $1,565.3712 1,000,001 - 5,500,000 0.04% $1,844.67 $2,464.39 $2,873.52 $3,325.15 $3,342.0913 5,500,001 + 0.00% $5,803.83 $7,753.61 $9,040.86 $10,461.82 $10,515.10
Option 1 – Individually Calculated2021 2022 2023 2024 2025
Rate per 500 ft2 $0.67 $0.88 $1.04 $1.22 $1.22Minimum Charge $4.50 $4.50 $4.50 $4.50 $4.50% Parcels not impacted 70% 58% 43% 28% 28%