The Austin Environmental Criteria Manual (ECM) provides guidelines and design criteria addressing vital environmental concerns within the city.
These concerns encompass water quality, landscaping, tree and natural area preservation, hazardous materials, and park construction activities.
The manual serves as a crucial resource for developers, consultants, and city staff, ensuring sustainable land development practices are followed;
Purpose and Scope of the Manual
The primary purpose of the Austin Environmental Criteria Manual (ECM) is to establish clear, consistent standards for environmental protection during land development activities. It aims to safeguard the city’s natural resources, including water quality, trees, and sensitive ecological areas, ensuring a sustainable future for Austin.
The scope of the manual is comprehensive, covering regulations related to water quality management, specifically detailing when Water Quality Controls (WQC) are required. It also addresses the preservation of trees – both protected and heritage trees – outlining criteria for removal permits and on-site preservation efforts.
Furthermore, the ECM extends to the responsible management of hazardous materials, including underground storage regulations, and governs construction activities within city parks. Ultimately, the manual integrates directly with the Land Development Code (LDC), particularly LDC 25-8, providing detailed guidance for compliance and offering pathways for variances and appeals.
History and Updates (Focus on 2021 Q3 Changes)
The Austin Environmental Criteria Manual has undergone periodic revisions to reflect evolving best practices and updated regulations. Significant changes were implemented in the third quarter of 2021, documented in the “Environmental Criteria Manual 2021 3rd Quarter Rule Changes” summary available through SpeakUp Austin!
These updates primarily focused on clarifying and strengthening tree preservation regulations, aligning with Land Development Code (LDC) 25-8.B.1. The 2021 Q3 revisions detailed definitions of tree removal – encompassing physical removal, excessive pruning, and root disturbance – and refined approval criteria for removal permits.
Key areas of change included reasonable use and access considerations, criteria for dead, diseased, or hazardous trees, and the establishment of a City Arborist position to oversee implementation and mitigation requirements. These changes aimed to enhance the protection of Austin’s urban forest.

Water Quality Management Regulations
Austin’s regulations prioritize maintaining water quality through controls outlined in the Land Development Code (LDC) 25-8, addressing runoff and impervious cover.
When Water Quality Controls (WQC) are Required
Water Quality Controls (WQC) are mandated in Austin when land development activities disturb more than a specified threshold of land area, triggering regulatory requirements.
These controls are essential for mitigating the impacts of increased impervious cover, which leads to greater stormwater runoff and potential pollution of waterways.
Specifically, WQC implementation is necessary when projects involve changes to land surfaces that could affect drainage patterns or water quality.
The City of Austin’s regulations, detailed within the Environmental Criteria Manual and LDC 25-8, outline the specific conditions necessitating WQC implementation.
Developers must adhere to these standards to ensure responsible land use and protect the city’s valuable water resources from degradation and pollution.
Understanding these thresholds and requirements is crucial for navigating the development process effectively and sustainably.
Impervious Cover and Water Runoff
Impervious cover – surfaces like rooftops, pavement, and compacted ground – significantly impacts water runoff patterns within Austin’s urban environment.
Unlike natural landscapes, impervious surfaces prevent rainwater from infiltrating into the ground, leading to increased volumes of stormwater runoff.
This heightened runoff carries pollutants such as oil, grease, sediment, and fertilizers directly into creeks, rivers, and lakes, degrading water quality.
The City of Austin’s regulations, outlined in the Environmental Criteria Manual, address this issue by limiting the amount of impervious cover allowed on development sites.
Strategies to mitigate the effects of impervious cover include utilizing Best Management Practices (BMPs) and incorporating green infrastructure solutions.
Reducing impervious cover is vital for maintaining healthy watersheds and protecting Austin’s aquatic ecosystems.
Best Management Practices (BMPs) for Water Quality
Best Management Practices (BMPs) are crucial for safeguarding water quality during and after land development activities in Austin.
These practices aim to minimize pollutants entering waterways by controlling stormwater runoff at its source.
The Environmental Criteria Manual details a range of BMPs, categorized by their approach to runoff control – source control, conveyance control, and end-of-pipe treatment.
Examples include vegetated filter strips, rain gardens, detention ponds, and porous pavement, each designed to remove pollutants and reduce runoff volume.
Proper selection and implementation of BMPs are essential for compliance with City of Austin regulations.
Effective BMPs contribute to healthier watersheds, improved aquatic habitats, and overall environmental sustainability within the city.

Tree and Natural Area Preservation
Austin’s regulations prioritize preserving trees and natural areas, requiring site plans to conserve Protected and Heritage trees to the extent feasible.
Protected and Heritage Tree Regulations (LDC 25-8.B.1)
Land Development Code (LDC) 25-8.B.1 establishes critical protections for significant trees within Austin. This regulation strictly prohibits the removal of both Protected and Heritage trees without first obtaining the necessary permit from the city.
The rules define “removal” broadly, encompassing not only the physical act of cutting down a tree, but also actions like excessive pruning that compromises its health, or substantial root disturbance that threatens its survival. Currently, the regulation applies to at least eight tree species designated as particularly valuable to the city’s ecosystem.

These regulations aim to maintain Austin’s urban forest, recognizing the vital role trees play in environmental quality, stormwater management, and overall community well-being. Adherence to LDC 25-8.B.1 is a cornerstone of responsible development within Austin.
Criteria for Tree Removal Permits
Obtaining a tree removal permit requires demonstrating justifiable cause, adhering to specific approval criteria outlined in the Environmental Criteria Manual. Permissible reasons for removal generally fall into several categories, ensuring removals are minimized and justified.
These include demonstrating a “reasonable use” of the property is obstructed by the tree, or that removal is necessary to provide “reasonable access” to the property. Additionally, permits may be granted for trees that are demonstrably dead, diseased, or pose an imminent hazard to people or property.
The city also considers administrative rules regarding preservation criteria and protection, alongside potential mitigation requirements. These criteria are implemented and overseen by the newly established City Arborist position.
Reasonable Use and Access
The “reasonable use” and “reasonable access” criteria for tree removal permits acknowledge legitimate property owner needs. However, these are carefully evaluated to prevent unnecessary tree loss. A demonstration must be provided showing how a protected or heritage tree substantially interferes with the reasonable enjoyment of the property.
This could involve hindering planned structures, preventing necessary improvements, or significantly impacting existing property use. Similarly, access limitations – such as blocking driveway access or impeding emergency vehicle routes – may justify removal.
The applicant bears the responsibility of proving these limitations exist and that no reasonable alternative solutions are available to address the issue without removing the tree.
Dead, Diseased, or Hazardous Trees
Removal of trees deemed “dead, diseased, or posing an imminent hazard” is generally permitted under the Austin regulations; However, this requires professional documentation – typically from a certified arborist – confirming the tree’s condition. A report detailing the specific issues, potential risks, and justification for removal is essential.
“Imminent hazard” signifies a substantial risk of failure, potentially causing property damage or personal injury. Simply being aesthetically undesirable or dropping leaves doesn’t qualify. The City Arborist may independently verify the arborist’s assessment.
Mitigation may still be required, even for hazardous trees, to offset the loss of canopy and environmental benefits.

Tree Preservation on Site Plans
Austin’s Land Development Code (LDC) 25-8;B.1 mandates preserving trees “to the extent feasible” on all site plan applications. This isn’t simply about counting trees; it’s about integrating tree preservation into the overall site design. Applicants must demonstrate efforts to minimize tree removal and maximize the retention of healthy, viable trees.
Site plans should clearly illustrate existing trees, proposed removals, and preservation zones. These zones protect the critical root zones of retained trees during construction. The City Arborist reviews these plans to ensure compliance with preservation requirements.
Failure to adequately address tree preservation can lead to delays or denial of site plan approval.
The Role of the City Arborist
The City Arborist plays a pivotal role in implementing Austin’s tree regulations, specifically those outlined in LDC 25-8.B.1 and detailed within Section 3 of the Environmental Criteria Manual (ECM). This newly established position ensures consistent application and interpretation of the tree preservation rules.
The City Arborist reviews site plans for compliance, evaluates tree removal permit applications, and provides technical guidance to developers and city staff. They assess tree health, determine appropriate mitigation strategies for unavoidable removals, and enforce preservation requirements during construction.
Ultimately, the Arborist champions urban forestry and promotes a healthy tree canopy throughout Austin.

Hazardous Materials Management
The ECM addresses the safe underground storage of hazardous materials and establishes regulations governing construction activities within Austin’s cherished city parks.
Underground Storage of Hazardous Materials
The Austin Environmental Criteria Manual (ECM) details stringent regulations concerning the underground storage of hazardous materials to protect both public health and the environment. These regulations aim to prevent leaks and spills that could contaminate soil and groundwater resources.
The manual outlines specific requirements for tank design, installation, operation, and monitoring; It covers aspects like corrosion protection, leak detection systems, and spill prevention control measures. Permitting processes are clearly defined, ensuring compliance with local, state, and federal guidelines.
Furthermore, the ECM specifies procedures for site assessments, closure of underground storage tanks, and remediation of contaminated sites. Proper handling and disposal of hazardous materials are paramount, and the manual provides detailed guidance to achieve this goal, safeguarding Austin’s ecological integrity.

Regulations for Construction Activity in City Parks
The Austin Environmental Criteria Manual (ECM) establishes comprehensive regulations governing construction activities within Austin’s cherished city parks. These rules are designed to minimize environmental disturbance and preserve the natural integrity of these valuable green spaces for public enjoyment.
The ECM details permitting requirements, erosion and sediment control measures, and restrictions on vegetation removal. It emphasizes the protection of sensitive areas, such as waterways and wildlife habitats. Construction plans must demonstrate adherence to best management practices (BMPs) to mitigate potential impacts.
Specific guidelines address noise levels, dust control, and waste management during construction. The manual also outlines restoration requirements to ensure disturbed areas are effectively rehabilitated post-construction, maintaining the parks’ ecological health and aesthetic appeal.

Land Development Code (LDC) Integration
The ECM directly integrates with the Austin Land Development Code (LDC), specifically LDC 25-8, addressing environmental considerations during development projects.
LDC 25-8: Environmental Considerations
LDC 25-8 establishes the City of Austin’s core environmental regulations for land development, forming the foundation for sustainable practices. This section mandates careful consideration of environmental impacts throughout the development process, ensuring protection of natural resources.
It specifically addresses water quality management, tree and natural area preservation, and hazardous materials handling. Developers must demonstrate compliance with LDC 25-8, often referencing the detailed guidance provided within the Environmental Criteria Manual (ECM).
The code outlines requirements for submitting environmental assessments, obtaining necessary permits, and implementing Best Management Practices (BMPs) to mitigate potential harm. Furthermore, LDC 25-8 details procedures for variances and appeals, offering a pathway for developers to address unique site constraints while still upholding environmental standards.

Variances and Appeals Processes
The City of Austin recognizes that strict adherence to all environmental regulations isn’t always feasible due to unique site conditions. Therefore, LDC 25-8 provides avenues for variances and appeals, offering flexibility within a framework of environmental protection.
A variance allows a deviation from specific requirements when strict compliance presents undue hardship. Applicants must demonstrate the hardship and propose alternative solutions that achieve the regulation’s intent.
Appeals processes are available for challenging administrative decisions related to environmental permits or enforcement actions. Detailed procedures, including timelines and required documentation, are outlined within the Environmental Criteria Manual (ECM) and the Land Development Code. These processes ensure fairness and transparency, allowing for review by relevant city boards or commissions.

Manual Access and Resources
The Environmental Criteria Manual (ECM) is readily accessible online through the City of Austin’s Development Services Department website.
Additionally, SpeakUp Austin! provides downloadable resources, including the 2021 Q3 rule changes summary.
Locating the Environmental Criteria Manual (ECM)
Accessing the Austin Environmental Criteria Manual (ECM) is straightforward for anyone involved in land development projects within the city limits. The primary location for obtaining the most current version of the manual is through the City of Austin’s Development Services Department website.
Navigate to the department’s online resources section, where you’ll find a dedicated page for environmental regulations and guidelines.
From there, you can directly download the complete ECM document in PDF format. It’s crucial to ensure you are utilizing the latest version, particularly considering updates like those implemented in the 2021 third quarter.
These updates reflect changes to city ordinances and best practices. Regularly checking the website for revisions is highly recommended to maintain compliance. The ECM is a vital tool for responsible development.
SpeakUp Austin! Resources
SpeakUp Austin! provides a valuable platform for public engagement regarding city projects and regulations, including those detailed within the Environmental Criteria Manual (ECM). This online resource allows residents to easily search for, and comment on, development applications undergoing review by the City of Austin.
Specifically, you can locate information related to projects requiring environmental assessments or permits, offering transparency and opportunities for community input.
The City provides a downloadable summary document – “Environmental Criteria Manual (ECM) 2021 Q3 Rules Changes Summary.pdf” – directly through SpeakUp Austin!, detailing recent modifications to the ECM.
Utilizing this resource ensures citizens are informed and empowered to participate in shaping environmentally responsible development within Austin.