Soil erosion from construction sites can cause sedimentation of nearby water bodies. Mandatory sediment controls can reduce sedimentation. What determines the degree to which sediment controls meet regulatory standards for installation and maintenance? A conditional-multinomial logit model is estimated with data from 85 construction sites that were audited in 2001 or 2005 in Greenville County, SC to determine whether 147 sediment ponds or traps were installed correctly, properly maintained, or both. Sixty two percent of ponds and traps were installed incorrectly, maintained improperly, or both. Costs of clean out negatively affect the probability that a sediment pond or trap is properly maintained. Construction site distance from the county‘s regulatory office and sales of the plan designer‘s firm positively affect the probability that a sediment control is installed incorrectly. Designer firms local to the construction site reduce the probability that sediment controls lack an emergency spillway when required.

建筑工地的土壤侵蚀会造成附近水体的沉积。强制性的泥沙控制可以减少泥沙淤积。是什么决定了沉积物控制在多大程度上符合安装和维护的监管标准?利用2001年或2005年格林维尔县85个建筑工地的审计数据，对条件多项logit模型进行了估计，以确定147个沉淀池或捕集器是否安装正确、维护得当，或两者皆有。62%的池塘和捕集器安装不当，维护不当，或者两者都有。清理的成本对沉积物池或捕集器得到适当维护的可能性有负面影响。建筑工地与县监管办公室的距离，以及规划设计师公司的销售，都积极影响着泥沙控制安装错误的可能性。设计公司在当地的建筑工地减少了可能性，泥沙控制缺乏紧急溢洪道时，需要。