Integration of Low Impact Development Studies into the International Stormwater BMP Database

Clary, Jane; Quigley, Marcus; Earles, Andrew; Leisenring, Marc; Strecker, Eric; Jones, Jonathan E.

doi:10.1061/41036(342)124

Cited by 6 publications

(8 citation statements)

References 3 publications

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“…3,4,9 However, the baseline uncontrolled basin in these studies may have been underperforming as these systems generally remove approximately 66% of TSS. 17 Field studies by Gilpin and Barrett, Jacopin et al , and Middleton and Barrett validate these observations with RTC strategies which extend hydraulic residence times being shown to achieve TSS removal efficiencies of 70–90%. 5–7…”

Section: Methodsmentioning

confidence: 71%

Turbidity informed real-time control of a dry extended detention basin: a case study

Akin¹,

Hathaway

Khojandi

2022

Environ. Sci.: Water Res. Technol.

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Section: Methodsmentioning

confidence: 71%

Turbidity informed real-time control of a dry extended detention basin: a case study

Akin¹,

Hathaway

Khojandi

2022

Environ. Sci.: Water Res. Technol.

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“…While this effect is fairly small, it mitigated NaCl, and annual high-NaCl IWS removal was 3 percentage points greater than low-NaCl non-IWS (Figure 3c). Like P, Cu is often considered vulnerable to reducing conditions, 6,31,39 attributed to changes in the solubility of metal oxides and Cu complexes and to interactions with sulfide. 47 Some bioretention studies have found a neutral or positive effect, 5,39,49 attributable to increased retention time, IWS organic amendments, 5,31 increased sorption capacity, 52 and system stability.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Impacts of Deicer Salt on Water Quality Performance of Stormwater Bioretention Systems with Varied Vegetation and Hydrology

Brown,

Hoffman,

McPhillips

2024

ACS EST Water

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Sodium chloride (NaCl) deicers contaminate bioretention and influence effluent water quality, the effects of which are not yet fully understood. We tested this by constructing 48 mesocosms in a greenhouse, each having Panicum virgatum, Eutrochium purpureum, or no vegetation; having an internal water storage (IWS) zone or not; and being exposed to high or low NaCl doses in the late winters of 2022 and 2023. Synthetic stormwater was applied and effluent was monitored through May 2023 with an end-of-experiment analysis of soil and plant biomass for nitrogen, phosphorus, copper, zinc, and total suspended solids (TSS). Average effluent loads increased in spring, after NaCl application, for total phosphorus (+61%), copper (+61%), zinc (+88%), and TSS (+66%). These four analytes recovered by summer, with average annual percent removals >85%. Vegetation and IWS reduced annual phosphorus (by −33 and −70%, respectively) and copper (by −24 and −40%) loads, while higher NaCl concentrations increased annual phosphorus (+107%), copper (+22%), and TSS (+51%) loads. Nitrogen removal was not linked with NaCl but was dependent upon the presence of IWS or vegetation. Post-NaCl effluent spikes pose seasonal risks to aquatic ecosystems, emphasizing the need for active maintenance, redundant removal mechanisms, and minimized exposure to NaCl.

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“…Some studies suggest that bioretention cells release rather than retain TP. 82 Similarly, expected TP removal rates range from 2% 79,80 to 12.7% for detention ponds. 81 It is important to note that previous laboratory and field studies have found that BMPs can result in the release of nutrients under certain design and temporal conditions, which would create negative removal rates; 83−85 such negative rates are not, to our knowledge, represented in existing models.…”

Section: Discussionmentioning

confidence: 99%

Best Management Practices for Diffuse Nutrient Pollution: Wicked Problems Across Urban and Agricultural Watersheds

Lintern

McPhillips

Winfrey

et al. 2020

Environ. Sci. Technol.

128

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Extensive time and financial resources have been dedicated to address nonpoint sources of nitrogen and phosphorus in watersheds. Despite these efforts, many watersheds have not seen substantial improvement in water quality. The objective of this study is to review the literature and investigate key factors affecting the lack of improvement in nutrient levels in waterways in urban and agricultural regions. From 94 studies identified in the academic literature, we found that, although 60% of studies found improvements in water quality after implementation of Best Management Practices (BMPs) within the watershed, these studies were mostly modeling studies rather than field monitoring studies. For studies that were unable to find improvements in water quality after the implementation of BMPs, the lack of improvement was attributed to lack of knowledge about BMP functioning, lag times, nonoptimal placement and distribution of BMPs in the watershed, postimplementation BMP failure, and socio-political and economic challenges. We refer to these limiting factors as known unknowns. We also acknowledge the existence of unknown unknowns that hinder further improvement in BMP effectiveness and suggest that machine learning, approaches from the field of business and operations management, and long-term convergent studies could be used to resolve these unknown unknowns.

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Integration of Low Impact Development Studies into the International Stormwater BMP Database

Cited by 6 publications

References 3 publications

Turbidity informed real-time control of a dry extended detention basin: a case study

Turbidity informed real-time control of a dry extended detention basin: a case study

Impacts of Deicer Salt on Water Quality Performance of Stormwater Bioretention Systems with Varied Vegetation and Hydrology

Best Management Practices for Diffuse Nutrient Pollution: Wicked Problems Across Urban and Agricultural Watersheds

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